Updated on 2025/10/21

写真a

 
Masaru Tachibana
 
Organization
Graduate School of Nanobioscience Department of Materials System Science Professor
School of Science Department of Science
President,etc. Vice President
Title
Professor
Contact information
メールアドレス
Profile
当研究室では、物理、化学、生物といった既存の分野に捕らわれることなく、これらの境界領域に属する物質群に注目して研究を進めています。現在は、新物質のフラーレン、カーボンナノチューブ、グラフェンから生体超分子のDNAやタンパク質といった巨大分子に至るまで、様々な種類の分子性結晶の作製と新規物性の探索を行っています。
External link

Degree

  • PhD ( 1995.12   Waseda University )

Research Interests

  • Fullerene

  • タンパク質結晶

  • 有機半導体

  • ナノカーボン

  • フラーレン

  • Nanotechnology

  • Protein crystal

  • Organic semiconductor

  • Carbon nanotube

  • graphene

  • 格子欠陥

Research Areas

  • Natural Science / Biophysics, chemical physics and soft matter physics

  • Natural Science / Semiconductors, optical properties of condensed matter and atomic physics

  • Nanotechnology/Materials / Inorganic materials and properties

  • Natural Science / Magnetism, superconductivity and strongly correlated systems

  • Nanotechnology/Materials / Metallic material properties

Education

  • Waseda University   Graduate School of Science and Engineering

    1987 - 1991

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  • Waseda University

    1983 - 1987

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  • 岐阜県立本巣高等学校

    1979 - 1982

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Research History

  • Yokohama City University   Trustee / Vice President

    2024.4

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  • Yokohama City University   Provost, Associatio of International Arts and Sciences

    2021.4 - 2024.3

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  • Yokohama City University   Graduate School of Nanobioscience   Dean

    2015.4 - 2021.3

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  • Yokohama City University   Graduate School of Nanobioscience,   Chair

    2009.4 - 2015.3

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  • Yokohama City University   International Graduate School of Arts and Sciences, Department of Science   Chair

    2008.4 - 2009.3

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  • Yokohama City University   International Graduate School of Arts and Sciences   Professor

    2006

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  • Yokohama City University   Associate Professor

    2001

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  • Pennsylvania State University (PSU)   Department of Physics   Postdoctoral fellow

    1999

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  • University of Kentucky (UK)   Department of Physics   Postdoctoral fellow

    1998

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  • Yokohama City University   Assistant Professor

    1991

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  • Yokohama City University, Department of Materials System Science, Graduate School of Nanobioscience   Professor

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Professional Memberships

Papers

  • Blue Electroluminescent Carbon Dots Derived from Victorian Lignite

    Tadahiko Hirai, Doki Yamaguchi, Ken Inoue, Ryo Suzuki, Makoto Tanimura, Yuko Kaneda, Masaru Tachibana

    ACS Omega   10 ( 2 )   2012 - 2019   2025.1

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsomega.4c07937

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  • Cross-linking controls the mechanical properties of protein crystals Reviewed

    Daiki Takaku, Ryo Suzuki, Kenichi Kojima, Masaru Tachibana

    Physical Review Materials   8 ( 5 )   2024.5

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Physical Society (APS)  

    DOI: 10.1103/physrevmaterials.8.l052601

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    Other Link: http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevMaterials.8.L052601/fulltext

  • Mechanical Properties of Modulative Undulating Layers in Two-Dimensional Metal–Organic Frameworks Reviewed International journal

    Yuudai Iwai, Sotaro Kusumoto, Ryo Suzuki, Masaru Tachibana, Kazuki Komatsu, Takashi Kikuchi, Saori I. Kawaguchi, Hirokazu Kadobayashi, Yuji Masubuchi, Yuzuki Yamamoto, Yoshiki Ozawa, Masaaki Abe, Kenji Hirai, Benjamin Le Ouay, Masaaki Ohba, Ryo Ohtani

    Chemistry of Materials   2024.5

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acs.chemmater.4c00355

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  • Raman study on the pressure-induced phase transformation of nanographite at room temperature Reviewed

    Yuyu Suzuki, Tomonari Arai, Sota Kawaguchi, Moeka Taniguchi, Ken Inoue, Kazuma Akikubo, Ryo Suzuki, Masaru Tachibana

    Carbon   225   119075 - 119075   2024.5

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.carbon.2024.119075

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  • Unraveling Polymorphism and Twisting in Near-Perfect Protein Crystals Reviewed

    Ryo Suzuki, Marina Abe, Kenichi Kojima, Masaru Tachibana

    The Journal of Physical Chemistry Letters   4031 - 4039   2024.4

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acs.jpclett.4c00319

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  • Effect of dispersibility of carbon nanotubes on the hardness and thermal properties of polyphenylene sulphide/carbon nanotube composites obtained using solution mixing and melt blending methods Reviewed

    Toru Takahashi, Shunsuke Tsubo, Ken Inoue, Ryo Suzuki, Hidenobu Murata, Masaru Tachibana

    Materials Science and Engineering: B   295   116579 - 116579   2023.9

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.mseb.2023.116579

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  • In Situ Observation of Slight Twisting in Hen Egg-White Lysozyme Crystals during Crystal Growth and Dissolution by Digital X-ray Topography Reviewed

    Marina Abe, Ryo Suzuki, Keiichi Hirano, Haruhiko Koizumi, Kenichi Kojima, Masaru Tachibana

    Crystal Growth & Design   2023.4

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acs.cgd.2c01537

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  • Investigation of mechanical properties of C70 nanowhiskers through bending and nanoindentation Reviewed

    Miyabi Watanabe, Ayaka Gomita, Ryo Suzuki, Masaru Tachibana

    Carbon Trends   10   100246 - 100246   2023.3

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.cartre.2023.100246

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  • Unique Mechanical Properties of Gel-Incorporating Protein Crystals Reviewed

    Ryo Suzuki, Ayano Karasawa, Ayaka Gomita, Marina Abe, Kenichi Kojima, Masaru Tachibana

    ACS Applied Bio Materials   2023.2

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsabm.2c01033

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  • Diffusion Coefficient of Intracrystalline Water in Intrinsic Hen Egg-White Lysozyme Crystals Determined by Confocal Raman Spectroscopy Reviewed

    Saori Matsushita, Ryo Suzuki, Marina Abe, Kenichi Kojima, Masaru Tachibana

    The Journal of Physical Chemistry B   126 ( 44 )   9000 - 9007   2022.11

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acs.jpcb.2c06329

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  • Rocking-curve imaging of high-quality protein crystals by non-dispersive X-ray optics in the double-crystal configuration Reviewed

    Ryo Suzuki, Marina Abe, Keiichi Hirano, Kenichi Kojima, Masaru Tachibana

    Journal of Applied Crystallography   55 ( 5 )   1111 - 1115   2022.10

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:International Union of Crystallography (IUCr)  

    The double-crystal configuration is useful for the evaluation of strain and defects in single crystals. In this study, rocking curve measurements by X-ray topography in the double-crystal configuration were demonstrated using perfect crystals of the protein glucose isomerase (GI). The setup enables precise evaluation of perfection in protein crystals with the nearly nondispersive X-ray optics. It reveals the uniform perfection of GI crystals according to the theory of X-ray diffraction. It is expected that unknown imperfections in various protein crystals of lower quality will be revealed by the nondispersive configuration using perfect protein crystals.

    DOI: 10.1107/s1600576722007130

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  • Solvated C70 single crystals for organic field effect transistors Reviewed

    Yuji Mitake, Ayaka Gomita, Ryohei Yamamoto, Miyabi Watanabe, Ryo Suzuki, Nobuyuki Aoki, Makoto Tanimura, Tadahiko Hirai, Masaru Tachibana

    Chemical Physics Letters   140094 - 140094   2022.10

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.cplett.2022.140094

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  • Plastic Deformation of Protein Crystals

    Ryo SUZUKI, Kenichi KOJIMA, Masaru TACHIBANA

    Journal of the Society of Materials Science, Japan   71 ( 9 )   749 - 755   2022.9

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    Publishing type:Research paper (scientific journal)   Publisher:Society of Materials Science, Japan  

    DOI: 10.2472/jsms.71.749

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  • Existence of twisting in dislocation-free protein single crystals Reviewed

    Marina Abe, Ryo Suzuki, Keiichi Hirano, Haruhiko Koizumi, Kenichi Kojima, Masaru Tachibana

    Proceedings of the National Academy of Sciences   119 ( 21 )   2022.5

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of the National Academy of Sciences  

    Significance

    Growing high-quality protein crystals is a prerequisite for the structure analysis of proteins by X-ray diffraction. However, dislocation-free perfect protein crystals such as silicon and diamond are limited to two kinds of protein crystals. We wonder whether other high-quality or dislocation-free protein crystals still exhibit some imperfection. Here, we explore the existence of twisting as a cause of imperfection in high-quality protein crystals by X-ray topography with synchrotron radiation. The magnitude of twisting is quite small and cannot be detected by conventional techniques as optical and electron microscopy. The formation of twisting may be related to the geometric frustration mechanism proposed as a primary mechanism of twisting. This finding provides insights on high-quality protein crystals with the ubiquity of twisting.

    DOI: 10.1073/pnas.2120846119

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  • Radiation-induced defects in protein crystals observed by X-ray topography Reviewed

    Ryo Suzuki, Seiki Baba, Nobuhiro Mizuno, Kazuya Hasegawa, Haruhiko Koizumi, Kenichi Kojima, Takashi Kumasaka, Masaru Tachibana

    Acta Crystallographica Section D Structural Biology   78 ( 2 )   196 - 203   2022.2

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:International Union of Crystallography (IUCr)  

    The characterization of crystal defects induced by irradiation, such as X-rays, charged particles and neutrons, is important for understanding radiation damage and the associated generation of defects. Radiation damage to protein crystals has been measured using various methods. Until now, these methods have focused on decreased diffraction intensity, volume expansion of unit cells and specific damage to side chains. Here, the direct observation of specific crystal defects, such as dislocations, induced by X-ray irradiation of protein crystals at room temperature is reported. Dislocations are induced even by low absorbed doses of X-ray irradiation. This study revealed that for the same total absorbed dose, the formation of defects appears to critically depend on the dose rate. The relationship between dislocation energy and dose energy was analyzed based on dislocation theory associated with elasticity theory for crystalline materials. This demonstration of the crystal defects induced by X-ray irradiation could help to understand the underlying mechanisms of X-ray-induced radiation damage.

    DOI: 10.1107/s205979832101281x

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  • Multi-faceted elastic flexibility of 1-naphthyl and 9-anthryl 2,2′:6′,2′′-terpyridine crystals Reviewed

    Sotaro Kusumoto, Karin Oishi, Manabu Nakaya, Ryo Suzuki, Masaru Tachibana, Yang Kim, Yoshihiro Koide, Shinya Hayami

    CrystEngComm   24 ( 47 )   8303 - 8308   2022

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    We report two organic crystals of 2,2′:6′,2′′-terpyridine derivatives each substituted with luminescent naphthyl and anthryl moieties, displaying multi-faceted flexible bending with elasticity in response to mechanical stress.

    DOI: 10.1039/d2ce01167k

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  • Recrystallization solvent-dependent elastic/plastic flexibility of an <i>n</i>-dodecyl-substituted tetrachlorophthalimide Reviewed

    Sotaro Kusumoto, Ryo Suzuki, Masaru Tachibana, Yoshihiro Sekine, Yang Kim, Shinya Hayami

    Chemical Communications   58 ( 35 )   5411 - 5414   2022

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    Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    A long alkyl-chained organic molecule has been crystallized into elastically or plastically deformable bending types depending on the recrystallization solvent.

    DOI: 10.1039/d2cc00663d

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  • Blue–Green Electroluminescent Carbon Dots Derived from Fenugreek Seeds for Display and Lighting Applications Reviewed

    Natsuko Urushihara, Tadahiko Hirai, Akansha Dager, Yuta Nakamura, Yuma Nishi, Ken Inoue, Ryo Suzuki, Makoto Tanimura, Kazuteru Shinozaki, Masaru Tachibana

    ACS Applied Nano Materials   2021.10

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsanm.1c02977

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  • フラーレンナノ結晶の特異な形態形成と力学特性 Invited Reviewed

    鈴木 凌, 橘 勝

    日本結晶成長学会誌   48 ( 2 )   2021.7

  • Control of strain in subgrains of protein crystals by the introduction of grown-in dislocations Reviewed

    Haruhiko Koizumi, Satoshi Uda, Ryo Suzuki, Masaru Tachibana, Kenichi Kojima, Katsuo Tsukamoto, Izumi Yoshizaki, Seijiro Fukuyama, Yoshihisa Suzuki

    Acta Crystallographica Section D Structural Biology   77 ( 5 )   599 - 605   2021.5

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    Publishing type:Research paper (scientific journal)   Publisher:International Union of Crystallography (IUCr)  

    It is important to reveal the exact cause of poor diffractivity in protein crystals in order to determine the accurate structure of protein molecules. It is shown that there is a large amount of local strain in subgrains of glucose isomerase crystals even though the overall crystal quality is rather high, as shown by clear equal-thickness fringes in X-ray topography. Thus, a large stress is exerted on the subgrains of protein crystals, which could significantly lower the resistance of the crystals to radiation damage. It is also demonstrated that this local strain can be reduced through the introduction of dislocations in the crystal. This suggests that the introduction of dislocations in protein crystals can be effective in enhancing the crystal quality of subgrains of protein crystals. By exploiting this effect, the radiation damage in subgrains could be decreased, leading to the collection of X-ray diffraction data sets with high diffractivity.

    DOI: 10.1107/s2059798321001820

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  • Identification of grown-in dislocations in protein crystals by digital X-ray topography Reviewed

    Ryo Suzuki, Marina Abe, Kenichi Kojima, Masaru Tachibana

    Journal of Applied Crystallography   54 ( 1 )   163 - 168   2021.2

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:International Union of Crystallography (IUCr)  

    X-ray topography is a useful and nondestructive method for direct observation of crystal defects in nearly perfect single crystals. The grown-in dislocations from the cross-linked seed crystal in tetragonal hen egg-white lysozyme crystals were successfully characterized by digital X-ray topography. Digital X-ray topographs with various reflections were easily obtained by reconstruction of sequential rocking-curve images. The Burgers vector of the dislocation is different from those reported previously. Interestingly, one of the dislocations had a bent shape. The preferred direction of the dislocation line was analysed by the estimated dislocation energy based on the dislocation theory. The dislocation energy can be estimated by the dislocation theory even in protein crystals composed of macromolecules.

    DOI: 10.1107/s1600576720015356

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  • Preparation of anatase TiO<sub>2</sub> nanowalls using carbon nanowall templating for photoelectrochemical water splitting Reviewed

    Kazuma Akikubo, Masaru Tachibana

    Japanese Journal of Applied Physics   60 ( 1 )   010903 - 010903   2021.1

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:IOP Publishing  

    Abstract

    We report a fabrication process of TiO<sub>2</sub> nanowall (NW) structures using carbon nanowall (CNW) templates. Ti-contained CNW templates were synthesized by plasma-enhanced chemical vapor deposition and sputtering (Ti-target) hybrid system. TiO<sub>2</sub> NW structures were then obtained by annealing of the Ti-contained CNW template, which was additionally coated by Ti sputtering, in air. The NW structure could not be retained after annealing of Ti-contained CNW templates without the additional Ti coatings because the amount of Ti in Ti-contained CNWs was not enough to maintain the NW. Using TiO<sub>2</sub> NW as a photoanode for water splitting, the photo-response was confirmed by photoelectrochemical measurements.

    DOI: 10.35848/1347-4065/abcffb

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    Other Link: https://iopscience.iop.org/article/10.35848/1347-4065/abcffb/pdf

  • Analysis of slip systems in protein crystals with a triclinic form using a phenomenological macro-bond method Reviewed

    Ryo Suzuki, Chika Shigemoto, Marina Abe, Kenichi Kojima, Masaru Tachibana

    CrystEngComm   2021

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    <p>Slip systems in triclinic hen egg-white lysozyme (Tri-HEWL) crystals, which is one of typical protein crystals, were identified by the indentation method and the surface energy estimation using phenomenological macro-bond methods.</p>

    DOI: 10.1039/d1ce00241d

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  • Ultrafast synthesis of carbon quantum dots from fenugreek seeds using microwave plasma enhanced decomposition: application of C-QDs to grow fluorescent protein crystals Reviewed

    Akansha Dager, Ankur Baliyan, Shunji Kurosu, Toru Maekawa, Masaru Tachibana

    Scientific Reports   10 ( 1 )   12333   2020.12

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1038/s41598-020-69264-9

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    Other Link: http://www.nature.com/articles/s41598-020-69264-9

  • Thermal expansion measurements of nano-graphite using high-temperature X-ray diffraction Reviewed

    Kazuma Akikubo, Tyler Kurahashi, Sota Kawaguchi, Masaru Tachibana

    Carbon   169   307 - 311   2020.11

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.carbon.2020.07.027

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  • Temperature dependence of the Raman spectra of multilayer graphene nanoribbons fabricated by unzipping method Reviewed

    Marina Tsujimoto, Makoto Tanimura, Masaru Tachibana

    Diamond and Related Materials   109   108047 - 108047   2020.11

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.diamond.2020.108047

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  • Large elastic deformation of C60 nanowhiskers Reviewed

    Yuto Funamori, Ryo Suzuki, Takatsugu Wakahara, Takahito Ohmura, Eri Nakagawa, Masaru Tachibana

    Carbon   169   65 - 72   2020.11

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.carbon.2020.07.061

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  • Evaluation of crystal quality of thin protein crystals based on the dynamical theory of X-ray diffraction Reviewed

    Marina Abe, Ryo Suzuki, Kenichi Kojima, Masaru Tachibana

    IUCrJ   7 ( 4 )   761 - 766   2020.7

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:International Union of Crystallography (IUCr)  

    Knowledge of X-ray diffraction in macromolecular crystals is important for not only structural analysis of proteins but also diffraction physics. Dynamical diffraction provides evidence of perfect crystals. Until now, clear dynamical diffraction in protein crystals has only been observed in glucose isomerase crystals. We wondered whether there were other protein crystals with high quality that exhibit dynamical diffraction. Here we report the observation of dynamical diffraction in thin ferritin crystals by rocking-curve measurement and imaging techniques such as X-ray topography. It is generally known that in the case of thin crystals it is difficult to distinguish whether dynamical diffraction occurs from only rocking-curve profiles. Therefore, our results clarified that dynamical diffraction occurs in thin protein crystals because fringe contrasts similar to <italic>Pendellösung</italic> fringes were clearly observed in the X-ray topographic images. For macromolecular crystallography, it is hard to obtain large crystals because they are difficult to crystallize. For thin crystals, dynamical diffraction can be demonstrated by analysis of the equal-thickness fringes observed by X-ray topography.

    DOI: 10.1107/s2052252520007393

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  • Synthesis and characterization of Mono-disperse Carbon Quantum Dots from Fennel Seeds: Photoluminescence analysis using Machine Learning Reviewed

    TACHIBANA Masaru

    Scientific Reports   9   1404   2019.9

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1038/s41598-019-50397-5

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  • Pit formation with graphene growth on copper foils by ethanol chemical vapor deposition Reviewed

    Marina Tsujimoto, Yuya Ogata, Masaru Tachibana

    Diamond and Related Materials   2019.8

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.diamond.2019.107602

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  • Effect of nitrogen and iron in carbon nanowalls on oxygen reduction reaction Reviewed

    Moeka Taniguchi, Ryo Yoshie, Kazuma Akikubo, Akira Tateno, Kozue Hotozuka, Norihito Kawaguchi, Takashi Uchida, Makoto Tanimura, Masaru Tachibana

    Electrochim. Acta   306   132 - 142   2019.3

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.electacta.2019.03.088

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  • Synthesis of metal oxide nanowall structures using a carbon nanowall template

    Kazuma Akikubo, Norihito Kawaguchi, Masaru Tachibana

    Japanese Journal of Applied Physics   58 ( 9 )   2019

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Institute of Physics Publishing  

    DOI: 10.7567/1347-4065/ab37fe

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  • Solvent-mediated phase transformation of C60 crystals with well-defined hexagonal shape Reviewed

    Saori Yamamoto, Yuto Funamori, Yuko Kaneda, Makoto Tanimura, Masaru Tachibana

    Chemical Physics Letters   730   105 - 111   2019

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.cplett.2019.05.047

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  • Improvement of Hen Egg White Lysozyme Crystal Quality by Control of Dehydration Process Reviewed

    Haruhiko Koizumi, Satoshi Uda, Katsuo Tsukamoto, Kenji Hanada, Ryo Suzuki, Masaru Tachibana, Kenichi Kojima

    Cryst. Growth Des.   19   5955 - 5960   2019

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.cgd.9b01084

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  • Analysis of oscillatory rocking curve by dynamical diffraction in protein crystals Reviewed

    Ryo Suzuki, Haruhiko Koizumi, Keiichi Hirano, Takashi Kumasaka, Kenichi Kojima, Masaru Tachibana

    Proceedings of the National Academy of Sciences of the United States of America   115 ( 14 )   3634 - 3639   2018.4

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:National Academy of Sciences  

    DOI: 10.1073/pnas.1720098115

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  • Importance of Hydration State around Proteins Required to Grow High-Quality Protein Crystals. Reviewed

    Haruhiko Koizumi, Satoshi Uda, Katsuo Tsukamoto, Kenichi Kojima, Masaru Tachibana, Toru Ujihara

    Cryst. Growth Des.   18   4749 - 4755   2018

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.cgd.8b00798

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  • Direct observation of stress-induced dislocations in protein crystals by synchrotron X-ray topography Reviewed

    Ryo Suzuki, Masaru Tachibana, Haruhiko Koizumi, Kenichi Kojima, Direct observation of, stress-induced dislocations in, rotein crystals by synchrotron, X-ray topography

    Acta Materialia   156   479 - 485   2018

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.actamat.2018.06.018

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  • Crystallization Technique of High-Quality Protein Crystals Controlling Surface Free Energy Reviewed

    Haruhiko Koizumi, Satoshi Uda, Katsuo Tsukamoto, Masaru Tachibana, Kenichi Kojima, Junpei Okada, Jun Nozawa

    CRYSTAL GROWTH & DESIGN   17 ( 12 )   6712 - 6718   2017.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.cgd.7b01315

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  • Microindentation Hardness of Protein Crystals under Controlled Relative Humidity Reviewed

    Takeharu Kishi, Ryo Suzuki, Chika Shigemoto, Hidenobu Murata, Kenichi Kojima, Masaru Tachibana

    CRYSTALS   7 ( 11 )   339-1 - 339-14   2017.11

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3390/cryst7110339

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  • Fe-N-doped carbon catalysts prepared by hybrid PECVD/sputtering system for oxygen reduction reaction Reviewed

    Kozue Hotozuka, Ryo Yoshie, Hidenobu Murata, Akira Tateno, Gen Ito, Norihito Kawaguchi, Takahiro Matsuo, Hitomi Ito, Ikuo Kinoshita, Masaru Tachibana

    CHEMICAL PHYSICS LETTERS   679   71 - 76   2017.7

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.cplett.2017.04.085

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  • Characterization of grown-in dislocations in high-quality glucose isomerase crystals by synchrotron monochromatic-beam X-ray topography Reviewed

    Ryo Suzuki, Haruhiko Koizumi, Kenichi Kojima, Seijiro Fukuyama, Yasutomo Arai, Katsuo Tsukamoto, Yoshihisa Suzuki, Masaru Tachibana

    JOURNAL OF CRYSTAL GROWTH   468   299 - 304   2017.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jcrysgro.2016.10.047

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  • Hardness and plastic deformation of triclinic hen egg-white lysozyme crystals

    Shigemoto Chika, Suzuki Ryo, Murata Hidenobu, Kojima Kenichi, Tachibana Masaru

    Meeting Abstracts of the Physical Society of Japan   72 ( 0 )   2350 - 2350   2017

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.72.2.0_2350

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  • Promotion of protein crystal growth by actively switching crystal growth mode via femtosecond laser ablation Reviewed

    Yusuke Tominaga, Mihoko Maruyama, Masashi Yoshimura, Haruhiko Koizumi, Masaru Tachibana, Shigeru Sugiyama, Hiroaki Adachi, Katsuo Tsukamoto, Hiroyoshi Matsumura, Kazufumi Takano, Satoshi Murakami, Tsuyoshi Inoue, Hiroshi Y. Yoshikawa, Yusuke Mori

    NATURE PHOTONICS   10 ( 11 )   723 - +   2016.11

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    DOI: 10.1038/NPHOTON.2016.202

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  • Characterization of nanocarbon deposited on insulator substrate by alcohol chemical vapor deposition Reviewed

    Marina Tsujimoto, Hidenobu Murata, Masaru Tachibana

    JAPANESE JOURNAL OF APPLIED PHYSICS   55 ( 10 )   105101-1 - 105101-3   2016.10

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    DOI: 10.7567/JJAP.55.105101

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  • Crystallization Technique for Strain-free Protein Crystals Using Cross-linked Seed Crystals Reviewed

    Haruhiko Koizumi, Satoshi Uda, Masaru Tachibana, Katsuo Tsukamoto, Kenichi Kojima, Jun Nozawa

    CRYSTAL GROWTH & DESIGN   16 ( 10 )   6089 - 6094   2016.10

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    DOI: 10.1021/acs.cgd.6b01136

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  • Polymerization in ferrocene-doped C-60 nanosheets under high pressure and light irradiation Reviewed

    Kyohei Kato, Hidenobu Murata, Hiromichi Gonnokami, Masaru Tachibana

    CARBON   107   622 - 628   2016.10

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    DOI: 10.1016/j.carbon.2016.06.042

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  • A crystallization technique for obtaining large protein crystals with increased mechanical stability using agarose gel combined with a stirring technique Reviewed

    Mihoko Maruyama, Yuki Hayashi, Hiroshi Y. Yoshikawa, Shino Okada, Haruhiko Koizumi, Masaru Tachibana, Shigeru Sugiyama, Hiroaki Adachi, Hiroyoshi Matsumura, Tsuyoshi Inoue, Kazufumi Takano, Satoshi Murakami, Masashi Yoshimura, Yusuke Mori

    JOURNAL OF CRYSTAL GROWTH   452   172 - 178   2016.10

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    DOI: 10.1016/j.jcrysgro.2015.11.008

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  • Importance of Determination of Crystal Quality in Protein Crystals when Performing High-Resolution Structural Analysis Reviewed

    Haruhiko Koizumi, Ryo Suzuki, Masaru Tachibana, Katsuo Tsukamoto, Izumi Yoshizaki, Seijiro Fukuyama, Yoshihisa Suzuki, Satoshi Uda, Kenichi Kojima

    CRYSTAL GROWTH & DESIGN   16 ( 9 )   4905 - 4909   2016.9

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    DOI: 10.1021/acs.cgd.6b00457

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  • Technique for High-Quality Protein Crystal Growth by Control of Subgrain Formation under an External Electric Field Reviewed

    Haruhiko Koizumi, Satoshi Uda, Kozo Fujiwara, Masaru Tachibana, Kenichi Kojima, Jun Nozawa

    CRYSTALS   6 ( 8 )   95   2016.8

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    DOI: 10.3390/cryst6080095

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  • Hardness and slip systems of orthorhombic hen egg-white lysozyme crystals Reviewed

    Ryo Suzuki, Takeharu Kishi, Shiro Tsukashima, Masaru Tachibana, Kei Wako, Kenichi Kojima

    PHILOSOPHICAL MAGAZINE   96 ( 28 )   2930 - 2942   2016

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    DOI: 10.1080/14786435.2016.1219074

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  • Synthesis of nano-carbon films on the insulator substrate by alcohol chemical vapor deposition

    Tsujimoto M., Murata H., Tachibana M.

    Meeting Abstracts of the Physical Society of Japan   71   2448 - 2448   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_2448

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  • Growth condition and structural characterization of C70 Nanowhiskers

    Hayase Hiroaki, Murata Hidenobu, Miyazawa Kun'ichi, Tachibana Masaru

    Meeting Abstracts of the Physical Society of Japan   71   1559 - 1559   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_1559

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  • Electronic Structure of Carbon Nanowalls andHydrogen Adsorption

    Ikuo KINOSHITA, Yukiumi KITA, Masanori TACHIKAWA, Masaru TACHIBANA

    Journal of Computer Chemistry, Japan   15 ( 5 )   177 - 183   2016

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    DOI: 10.2477/jccj.2016-0016

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  • Hardness and plastic deformation of orthorhombic hen egg-white lysozyme crystals

    Suzuki Ryo, Wako Kei, Kojima Kenichi, Tachibana Masaru

    Meeting Abstracts of the Physical Society of Japan   71   2519 - 2519   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_2519

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  • Pressure-induced transformation of ferrocene-doped C60 nanosheets fabricated by liquid-liquid interfacial precipitation method Reviewed

    Kyohei Kato, Kunichi Miyazawa, Hidenobu Murata, Masaru Tachibana

    Trans. Mat. Res. Soc. Japan   41 ( 1 )   407 - 410   2016

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    Ferrocene-doped C<sub>60</sub> nanosheets consisting of alternating C<sub>60</sub> and ferrocene layers were grown by liquid-liquid interfacial precipitation method, and their pressure-induced transformation at room temperature was investigated by means of Raman spectroscopy. The charge transfer and polymerization of C<sub>60</sub> occur with increasing pressure even at room temperature, while the transition pressures are low compared with those of the same kind of sample reported previously. The discrepancy in the transition pressures can be attributed to the crystal quality. In addition, it should be noted that the structure of the sample recovered after decompression is found to be amorphous C<sub>60</sub>, although the Raman spectrum almost completely returns to the starting one of isolated C<sub>60</sub>. Such depolymerization of C<sub>60</sub> would be due to the effect of ferrocene layers which stabilize the initial isolated C<sub>60</sub> at ambient temperature and pressure.

    DOI: 10.14723/tmrsj.41.71

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  • Transmission electron microscopy analysis of vertically grown C<inf>60</inf> fullerene microtube-AAO membrane joint interfaces Reviewed

    Miyazawa, K., Shimomura, S., Wakahara, T., Tachibana, M.

    Diamond and Related Materials   65   204 - 208   2016

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    DOI: 10.1016/j.diamond.2015.10.027

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  • Pt nanoparticles supported on carbon nanowalls with different domain sizes for oxygen reduction reaction Reviewed

    Akira Ashikawa, Ryo Yoshie, Kyohei Kato, Kun'ichi Miyazawa, Hidenobu Murata, Kozue Hotozuka, Masaru Tachibana

    JOURNAL OF APPLIED PHYSICS   118 ( 21 )   214303-1 - 214303-6   2015.12

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    DOI: 10.1063/1.4936787

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  • Crystallization of high-quality protein crystals using an external electric field Reviewed

    H. Koizumi, S. Uda, K. Fujiwara, M. Tachibana, K. Kojima, J. Nozawa

    JOURNAL OF APPLIED CRYSTALLOGRAPHY   48   1507 - 1513   2015.10

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    DOI: 10.1107/S1600576715015885

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  • Towards the standardization of fullerene nanofibers using Raman spectroscopy Reviewed

    Erlon H. Martins Ferreira, Lingling Ren, Guangzhe Piao, Soon Hyung Hong, Masaru Tachibana, Valter Sergo, Alois Bonifacio, Froylan Martinez, Ryoei Kato, Kun'Ichi Miyazawa

    17th International Congress of Metrology, CIM 2015   14004-1 - 14004-5   2015.9

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    DOI: 10.1051/metrology/20150014004

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  • Correction of the equilibrium temperature caused by slight evaporation of water in protein crystal growth cells during long-term space experiments at International Space Station Reviewed

    Takahisa Fujiwara, Yoshihisa Suzuki, Izumi Yoshizaki, Katsuo Tsukamoto, Kenta Murayama, Seijiro Fukuyama, Kouhei Hosokawa, Kentaro Oshi, Daisuke Ito, Tomoya Yamazaki, Masaru Tachibana, Hitoshi Miura

    REVIEW OF SCIENTIFIC INSTRUMENTS   86 ( 8 )   083704-1 - 083704-6   2015.8

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    DOI: 10.1063/1.4928491

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  • Synthesis of graphene films on Cu foils by thermal annealing without a carbon-containing chemical flow Reviewed

    Shiyo Morisako, Marina Tsujimoto, Hidenobu Murata, Masaru Tachibana

    Trans. Mat. Res. Soc. Japan   40 ( 4 )   407 - 410   2015

  • 17aAB-10 Evaluation for Perfection of Protein Crystals with Analyzing X-ray Digital Topography

    Wako K., Fujii D., Kishi T., Suzuki R., Tachibana M., Kojima K.

    Meeting Abstracts of the Physical Society of Japan   70   2442 - 2442   2015

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    DOI: 10.11316/jpsgaiyo.70.2.0_2442

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  • 21aCJ-6 Evaluation for Perfection of Protein Crystals with Analyzing X-ray Digital Topography

    Wako K., Fujii D., Kishi T., Suzuki R., Tachibana M., Kojima K.

    Meeting Abstracts of the Physical Society of Japan   70   2680 - 2680   2015

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    DOI: 10.11316/jpsgaiyo.70.1.0_2680

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  • 21aCJ-5 Mechanical Properties of Glucose isomerase Crystals

    Kishi Takeharu, Suzuki Ryo, Wako Kei, Kojima Kenichi, Tachibana Masaru

    Meeting Abstracts of the Physical Society of Japan   70   2679 - 2679   2015

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    DOI: 10.11316/jpsgaiyo.70.1.0_2679

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  • 24aAQ-1 Mechanical properties of protein crystals grown in agarose gel

    Suzuki R., Kishi T., Wako K., Kojima K., Tachibana M.

    Meeting Abstracts of the Physical Society of Japan   70   3409 - 3409   2015

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    DOI: 10.11316/jpsgaiyo.70.1.0_3409

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  • Control of Subgrain Formation in Protein Crystals by the Application of an External Electric Field Reviewed

    H. Koizumi, S. Uda, K. Fujiwara, M. Tachibana, K. Kojima, J. Nozawa

    CRYSTAL GROWTH & DESIGN   14 ( 11 )   5662 - 5667   2014.11

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    DOI: 10.1021/cg500946b

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  • Dislocations in High-Quality Glucose Isomerase Crystals Grown from Seed Crystals Reviewed

    H. Koizumi, M. Tachibana, I. Yoshizaki, S. Fukuyama, K. Tsukamoto, Y. Suzuki, S. Uda, K. Kojima

    CRYSTAL GROWTH & DESIGN   14 ( 10 )   5111 - 5116   2014.10

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    DOI: 10.1021/cg500731v

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  • Synthesis of C-70 two-dimensional nanosheets by liquid-liquid interfacial precipitation method Reviewed

    Kana Osonoe, Ryosuke Kano, Kun'ichi Miyazawa, Masaru Tachibana

    JOURNAL OF CRYSTAL GROWTH   401   458 - 461   2014.9

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    DOI: 10.1016/j.jcrysgro.2013.12.056

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  • Crystal distortion of monoclinic hen egg-white lysozyme crystals using X-ray digital topography Reviewed

    Kei Wako, Daiki Fujii, Shiro Tsukashima, Takeharu Kishi, Masaru Tachibana, Kenichi Kojima

    JOURNAL OF CRYSTAL GROWTH   401   238 - 241   2014.9

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    DOI: 10.1016/j.jcrysgro.2013.12.036

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  • Temperature dependence of the Raman spectra of polycrystalline graphene grown by chemical vapor deposition Reviewed

    Nagisa Hosoya, Yosuke Akaho, Miki Inoue, Satyaprakash Sahoo, Masaru Tachibana

    APPLIED PHYSICS LETTERS   105 ( 2 )   023108-1 - 023108-5   2014.7

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    DOI: 10.1063/1.4890388

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  • Two-Dimensional Carbon Invited Reviewed

    2014.4

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    DOI: 10.1201/b15656

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  • Elastic constants in orthorhombic hen egg-white lysozyme crystals Reviewed

    N. Kitajima, S. Tsukashima, D. Fujii, M. Tachibana, H. Koizumi, K. Wako, K. Kojima

    PHYSICAL REVIEW E   89 ( 1 )   012714-1 - 012714-6   2014.1

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    DOI: 10.1103/PhysRevE.89.012714

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  • Growth and FIB-SEM analyses of C<inf>60</inf> microtubes vertically synthesized on porous alumina membranes Reviewed

    Miyazawa, K., Kuriyama, R., Shimomura, S., Wakahara, T., Tachibana, M.

    Journal of Crystal Growth   388   5 - 11   2014

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    DOI: 10.1016/j.jcrysgro.2013.11.009

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  • Enhancement of Crystal Homogeneity of Protein Crystals under Application of an External Alternating Current Electric Field Reviewed

    H. Koizumi, S. Uda, K. Fujiwara, M. Tachibana, K. Kojima, J. Nozawa

    INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2014 (ICCMSE 2014)   1618   265 - 268   2014

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    DOI: 10.1063/1.4897724

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  • Growth rate measurements of lysozyme crystals under microgravity conditions by laser interferometry Reviewed International journal

    Izumi Yoshizaki, Katsuo Tsukamoto, Tomoya Yamazaki, Kenta Murayama, Kentaro Oshi, Seijiro Fukuyama, Taro Shimaoka, Yoshihisa Suzuki, Masaru Tachibana

    REVIEW OF SCIENTIFIC INSTRUMENTS   84 ( 10 )   103707-103707-8   2013.10

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    DOI: 10.1063/1.4826090

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  • Improvement of crystal quality for tetragonal hen egg white lysozyme crystals under application of an external alternating current electric field Reviewed

    H. Koizumi, S. Uda, K. Fujiwara, M. Tachibana, K. Kojima, J. Nozawa

    JOURNAL OF APPLIED CRYSTALLOGRAPHY   46   25 - 29   2013.2

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    DOI: 10.1107/S0021889812048716

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  • Transparent graphitic tiles synthesized from carbon nanowalls by shock compression and rapid quenching Reviewed

    Kazutaka Nakamura, Toshiyuki Atou, Keisuke Niwase, Kazutaka G. Nakamura, Akihiko Yoshimura, Makoto Tanimura, Ken-Ichi Kobayashi, Masaru Tachibana

    Journal of Applied Physics   113 ( 4 )   044313-1 - 044313-5   2013.1

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    DOI: 10.1063/1.4789609

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  • Structural characterization of the C60 nanowhiskers heat-treated at high temperatures for potential superconductor application Reviewed

    K. Miyazawa, C. Hirata, R. Kano, T. Wakahara, H. Takeya, T. Yamaguchi, Y. Takano, J. Tang, Y. Lin, M. Tachibana

    Trans. Mat. Res. Soc. Japan   38 ( 4 )   517 - 520   2013

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    Structure of the C<sub>60</sub> nanowhiskers (C<sub>60</sub>NWs) heat-treated at high temperatures was investigated by high-resolution transmission electron microscopy (HRTEM), electron energy loss spectroscopy (EELS), Raman spectrometry, thermogravimetric analysis, Brunauer-Emmett-Teller (BET) method, and so forth. Although the C<sub>60</sub>NWs heated at 800 °C in vacuum showed a remaining of C<sub>60</sub> molecules, the C<sub>60</sub>NWs became amorphous by heating at 900 °C in vacuum, exhibiting the highest specific surface area of 195.2 m<sup>2</sup>g<sup>-1</sup>.The porous nanofibers synthesized by heating C<sub>60</sub>NWsat high temperatures are new candidates of superconductive graphitic carbon.

    DOI: 10.14723/tmrsj.38.517

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  • Effect of laser irradiation on few-layer graphene in air probed by Raman spectroscopy Reviewed

    Nagisa Hosoya, Makoto Tanimura, Masaru Tachibana

    Trans. Mat. Res. Soc. Japan   38 ( 4 )   517 - 520   2013

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    The effect of laser irradiation on few-layer graphene in air was investigated by Raman spectroscopy. The irradiation results in an increase of D band intensity and a concomitant drop in 2D band intensity. Furthermore, both frequencies of G and 2D bands increase. For bilayer and trilayer graphenes, the shape of the 2D band is also changed after the irradiation. Namely, the high-frequency components decrease. From these results, it is suggested that the laser irradiation in air leads to the thermal oxidation with the hole doping and the change in the stacking sequence in the decomposed few-layer graphene with smaller size.

    DOI: 10.14723/tmrsj.38.579

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  • Elastic Constants of Protein Crystals

    橘 勝, 小泉晴比古, 小島謙一

    日本結晶成長学会誌   40 ( 2 )   126 - 134   2013

  • Digital topography with an X-ray CCD camera for characterizing perfection in protein crystals Reviewed

    Kei Wako, Kunio Kimura, Yu Yamamoto, Takuya Sawaura, Mengyuan Shen, Masaru Tachibana, Kenichi Kojima

    JOURNAL OF APPLIED CRYSTALLOGRAPHY   45   1009 - 1014   2012.10

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  • Atomic force microscopy and Raman spectroscopy study of the early stages of carbon nanowall growth by dc plasma-enhanced chemical vapor deposition Reviewed

    Akihiko Yoshimura, Hirofumi Yoshimura, Seog Chul Shin, Ken-ichi Kobayashi, Makoto Tanimura, Masaru Tachibana

    CARBON   50 ( 8 )   2698 - 2702   2012.7

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    DOI: 10.1016/j.carbon.2012.02.026

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  • X-ray Topography in Protein Crystals

    KOJIMA Kenichi, TACHIBANA Masaru

    X-RAYS   54 ( 1 )   29 - 36   2012.2

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    X-ray topography, especially synchrotron X-ray topography, provides a useful tool for the characterization of protein crystals in order to characterize the defects. We observed clear images of dislocations in hen-egg white lysozyme crystals. In this article we overviewed the research on crystal defects, especially dislocations of protein crystals by synchrotron X-ray topography.

    DOI: 10.5940/jcrsj.54.29

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  • Carbon nanowalls as platinum support for fuel cells Reviewed

    Seog Chul Shin, Akihiko Yoshimura, Takahiro Matsuo, Manami Mori, Makoto Tanimura, Akimitsu Ishihara, Ken-ichiro Ota, Masaru Tachibana

    JOURNAL OF APPLIED PHYSICS   110 ( 10 )   2011.11

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    DOI: 10.1063/1.3662142

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  • Growth, structures, and mechanical properties of C60 nanowhiskers Reviewed

    Masaru Tachibana

    Fullerene Nanowhiskers   25 - 42   2011.9

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    DOI: 10.4032/9789814241632

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  • Formation of trans-polyacetylene from single-wall carbon nanotubes Reviewed

    Mari Hakamatsuka, Hirofumi Yoshimura, Masaru Tachibana

    CARBON   49 ( 6 )   1869 - 1872   2011.5

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    DOI: 10.1016/j.carbon.2011.01.009

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  • Characterization of dislocations in monoclinic hen egg-white lysozyme crystals by synchrotron monochromatic-beam X-ray topography Reviewed

    Takuya Sawaura, Daiki Fujii, Mengyuan Shen, Yu Yamamoto, Kei Wako, Kenichi Kojima, Masaru Tachibana

    JOURNAL OF CRYSTAL GROWTH   318 ( 1 )   1071 - 1074   2011.3

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    DOI: 10.1016/j.jcrysgro.2010.11.018

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  • Temperature-dependent carrier mobility and threshold voltage of field-effect transistors with tetracene single crystals Reviewed

    Satoru Terao, Tadahiko Hirai, Naomi Morita, Hiroaki Maeda, Kenichi Kojima, Masaru Tachibana

    JOURNAL OF APPLIED PHYSICS   108 ( 12 )   2010.12

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    DOI: 10.1063/1.3499631

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  • Structural, electronic, optical and vibrational properties of nanoscale carbons and nanowires: A colloquial review

    Milton W. Cole, Vincent H. Crespi, Mildred S. Dresselhaus, Gene Dresselhaus, John E. Fischer, Humberto R. Gutierrez, K. Kojima, Gerald D. Mahan, Apparao M. Rao, Jorge O. Sofo, M. Tachibana, K. Wako, Qihua Xiong

    Journal of Physics Condensed Matter   22 ( 33 )   2010.8

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  • First-principles calculation and transmission electron microscopy observation for hydrogen adsorption on carbon nanowalls Reviewed

    Y. Kita, S. Hayashi, I. Kinoshita, M. Tachibana, M. Tachikawa, K. Kobayashi, M. Tanimura

    JOURNAL OF APPLIED PHYSICS   108 ( 1 )   2010.7

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  • Anomalous Anderson weak localization of graphite thin film fabricated by plasma-enhanced chemical vapor deposition Reviewed

    Shigeki Yamada, Hirofumi Yoshimura, Masaru Tachibana

    Journal of the Physical Society of Japan   79 ( 5 )   054708   2010.5

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    DOI: 10.1143/JPSJ.79.054708

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  • Influence of heating and laser irradiation on the Raman D band in single-wall carbon nanotubes Reviewed

    Dongchul Kang, Mari Hakamatsuka, Kenichi Kojima, Masaru Tachibana

    DIAMOND AND RELATED MATERIALS   19 ( 5-6 )   578 - 580   2010.5

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    DOI: 10.1016/j.diamond.2009.12.008

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  • High Rate Property of Carbon Nanowalls as Negative Electrode in Lithium Ion Secondary Battery

    Tachibana Masaru

    Bulletin of the Japan Institute of Metals   49 ( 7 )   320 - 322   2010

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    DOI: 10.2320/materia.49.320

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  • Grazing incidence X-ray diffraction study on carbon nanowalls Reviewed

    Hirofumi Yoshimura, Shigeki Yamada, Akihiko Yoshimura, Ichiro Hirosawa, Kenichi Kojima, Masaru Tachibana

    CHEMICAL PHYSICS LETTERS   482 ( 1-3 )   125 - 128   2009.11

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    DOI: 10.1016/j.cplett.2009.09.104

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  • Observation of dislocations in hen egg-white lysozyme crystals by synchrotron monochromatic-beam X-ray topography Reviewed

    Yu. Mukobayashi, Natsuko Kitajima, Yu. Yamamoto, Kentaro Kajiwara, Hiroshi Sugiyama, Keiichi Hirano, Kenichi Kojima, Masaru Tachibana

    PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE   206 ( 8 )   1825 - 1828   2009.8

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    DOI: 10.1002/pssa.200881596

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  • Elastic constants in tetragonal hen egg-white lysozyme crystals containing large amount of water

    H. Koizumi, M. Tachibana, K. Kojima

    PHYSICAL REVIEW E   79 ( 6 )   061917-1-6   2009.6

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    DOI: 10.1103/PhysRevE.79.061917

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  • Lithium insertion behavior of carbon nanowalls by dc plasma CVD and its heat-treatment effect

    Osamu Tanaike, Norihiro Kitada, Hirofumi Yoshimura, Hiroaki Hatori, Kenichi Kojima, Masaru Tachibana

    SOLID STATE IONICS   180 ( 4-5 )   381 - 385   2009.4

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    DOI: 10.1016/j.ssi.2009.01.012

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  • Formation and structures of C60 nanowhiskers with high strength and large elasticity

    Mami Watanabe, Takahiro Yamamoto, Kenichi Kojima, Makoto Tanimura, Masaru Tachibana

    Journal of Physics: Conference Series   159   2009

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    DOI: 10.1088/1742-6596/159/1/012009

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  • Pressure-induced superconductivity in boron-doped Buckypapers Reviewed

    J. Nakamura, M. Matsudaira, J. Haruyama, H. Sugiura, M. Tachibana, J. Reppert, A. Rao, T. Nishio, Y. Hasegawa, H. Sano, Y. Iye

    Applied Physics Letters   95 ( 14 )   2009

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    DOI: 10.1063/1.3242016

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  • Growth mechanism of vertically aligned fullerene micro tubes prepared by the liquid-liquid interfacial precipitation method

    S. Toita, K. Miyazawa, K. Hotta, M. Tachibana

    Journal of Physics: Conference Series   159   2009

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    DOI: 10.1088/1742-6596/159/1/012012

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  • GC-MS analysis of the solvents contained in C60 nanowhiskers

    M. Watanabe, K. Hotta, K. Miyazawa, M. Tachibana

    Journal of Physics: Conference Series   159   2009

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    DOI: 10.1088/1742-6596/159/1/012010

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  • Phonon control in metallic carbon nanotubes due to laser-induced defects

    D. Kang, K. Kato, K. Kojima, T. Uchida, M. Tachibana

    APPLIED PHYSICS LETTERS   93 ( 13 )   3   2008.9

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    DOI: 10.1063/1.2990659

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  • Bending Deformation of Single-Walled Carbon Nanotubes Caused by 5-7 Pair Couple Defect Reviewed

    Kei Wako, Tatsuki Oda, Masaru Tachibana, Kenichi Kojima

    JAPANESE JOURNAL OF APPLIED PHYSICS   47 ( 8 )   6601 - 6605   2008.8

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    DOI: 10.1143/JJAP.47.6601

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  • Atomic force microscopic study on DNA-wrapping for different diameter single-wall carbon nanotubes

    S. Toita, D. Kang, K. Kobayashi, H. Kawamoto, K. Kojima, A. Tachibana

    DIAMOND AND RELATED MATERIALS   17 ( 7-10 )   1389 - 1393   2008.7

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    DOI: 10.1016/j.diamond.2008.01.010

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  • Dislocation motions in C-60 crystals by an indentation test

    N. Aota, M. Tachibana, K. Kojima

    JOURNAL OF PHYSICS D-APPLIED PHYSICS   41 ( 7 )   5   2008.4

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    DOI: 10.1088/0022-3727/41/7/074002

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  • Effect of intracrystalline water on micro-Vickers hardness in tetragonal hen egg-white lysozyme single crystals

    H. Koizumi, H. Kawamoto, M. Tachibana, K. Kojima

    JOURNAL OF PHYSICS D-APPLIED PHYSICS   41 ( 7 )   2008.4

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    DOI: 10.1088/0022-3727/41/7/074019

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  • Ultraviolet photoelectron spectroscopy study of electronic states and deuterium adsorption on carbon nanowalls

    Ikuo Kinoshita, Saori Hayashi, Hirofumi Yoshimura, Hiroshi Nakai, Masaru Tachibana

    CHEMICAL PHYSICS LETTERS   450 ( 4-6 )   360 - 364   2008.1

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    DOI: 10.1016/j.cplett.2007.11.038

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  • Bending deformation of single-walled carbon nanotubes caused by a five-seven pair couple defect

    TACHIBANA Masaru

    Jpn. J. Appl. Phys.   47   5   2008

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  • Structural analysis of C60 nanotubes heat-treated in vacuum

    Kun'ichi Miyazawa, Cherry Ringor, Kohei Nakamura, Masaru Tachibana, Kazuma Saito, Tokushi Kizuka

    IEEJ Transactions on Sensors and Micromachines   128 ( 8 )   317 - 320   2008

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    DOI: 10.1541/ieejsmas.128.317

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  • Bending deformation of C60 nanowhiskers in solution and air

    Mami Watanabe, Kun'ichi Miyazawa, Kenichi Kojima, Masaru Tachibana

    IEEJ Transactions on Sensors and Micromachines   128 ( 8 )   321 - 324   2008

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    DOI: 10.1541/ieejsmas.128.321

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  • Dislocation structures in tetragonal hen egg-white lysozyme crystals using synchrotron white-beam topography

    H. Koizumi, M. Tachibana, K. Kojima, I. Yonenaga

    PHYSICA B-CONDENSED MATTER   401   691 - 694   2007.12

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    DOI: 10.1016/j.physb.2007.09.053

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  • Formation of a five-seven pair couple defect in double-walled carbon nanotubes under bending deformation

    Kei Wako, Isamu Okada, Masaru Tachibana, Kenichi Kojima, Tatsuki Oda

    JOURNAL OF APPLIED PHYSICS   102 ( 11 )   7   2007.12

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    DOI: 10.1063/1.2821247

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  • Observation of clear images of dislocations in protein crystals by synchrotron monochromatic-beam X-ray topography

    Mayumi Koishi, Naoki Ohya, Yu Mukobayashi, Hartthiko Koizumi, Kenichi Kojima, Masaru Tachibana

    CRYSTAL GROWTH & DESIGN   7 ( 11 )   2182 - 2186   2007.11

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    DOI: 10.1021/cg7009447

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  • Characterization of dislocations in orthorhombic hen egg-white lysozyme crystals by synchrotron X-ray topography Reviewed

    H. Koizumi, M. Shimizu, M. Tachibana, K. Kojima

    Physica Status Solidi (A) Applications and Materials Science   204 ( 8 )   2688 - 2693   2007.8

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    DOI: 10.1002/pssa.200675679

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  • Structural characterization of C-60 nanotubes by Raman and TEM analyses

    Kohei Nakamura, Kun'ichi Miyazawa, Masaru Tachibana, Kenichi Kojima

    TRANSACTIONS OF THE MATERIALS RESEARCH SOCIETY OF JAPAN, VOL 32, NO 4   32 ( 4 )   1015 - 1018   2007

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  • G band Raman features of DNA-wrapped single-wall carbon nanotubes in aqueous solution and air

    H. Kawamoto, T. Uchida, K. Kojima, M. Tachibana

    CHEMICAL PHYSICS LETTERS   432 ( 1-3 )   172 - 176   2006.12

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    DOI: 10.1016/j.cplett.2006.10.019

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  • Raman study of DNA-wrapped single-wall carbon nanotube hybrids under various humidity conditions

    H. Kawamoto, T. Uchida, K. Kojima, M. Tachibana

    CHEMICAL PHYSICS LETTERS   431 ( 1-3 )   118 - 120   2006.11

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    DOI: 10.1016/j.cplett.2006.09.048

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  • Synthesis of single-wall carbon nanotubes from diesel soot

    Takashi Uchida, Ouji Ohashi, Hironori Kawamoto, Hirofumi Yoshimura, Ken-ichi Kobayashi, Makoto Tanimura, Naohiro Fujikawa, Tetsuro Nishimoto, Kazuhiko Awata, Masaru Tachibana, Kenichi Kojima

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS   45 ( 10A )   8027 - 8029   2006.10

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    DOI: 10.1143/JJAP.45.8027

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  • Raman spectra of carbon nanowalls grown by plasma-enhanced chemical vapor deposition Reviewed

    S Kurita, A Yoshimura, H Kawamoto, T Uchida, K Kojima, M Tachibana, P Molina-Morales, H Nakai

    JOURNAL OF APPLIED PHYSICS   97 ( 10 )   104320   2005.5

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    DOI: 10.1063/1.1900297

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  • Photo-assisted growth of C-60 nanowhiskers from solution Reviewed

    K Kobayashi, M Tachibana, K Kojima

    JOURNAL OF CRYSTAL GROWTH   274 ( 3-4 )   617 - 621   2005.2

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    DOI: 10.1016/j.jcrysgro.2004.10.020

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  • Fabrication of carbon nanowalls by dc plasma-enhanced chemical vapor deposition and characterization of their structures Reviewed

    Akihiko Yoshimura, Satoshi Kurita, Masaru Tachibana, Kenichi Kojima, Pedro Molina-Morales, Hiroshi Nakai

    2005 5th IEEE Conference on Nanotechnology   2   669 - 672   2005

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    DOI: 10.1109/NANO.2005.1500805

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  • The First Observation of All Six Elastic Constants in Tetragonal Hen Egg-white Lysozyme Crystals Reviewed

    Koizumi Haruhiko, Tachibana Masaru, Kojima Kenichi

    ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES   61   C331   2005

  • Characterization of Dislocations in Protein Crystals using Synchrotron White-beam Topography Reviewed

    Kojima Kenichi, Koizumi Haruhiko, Shimizu Miki, Tachibana Masaru, Kajiwara Kentaro, Sugiyama Hiroshi

    ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES   61   C448   2005

  • Temperature dependence of the Breit-Wigner-Fano Raman line in single-wall carbon nanotube bundles Reviewed

    T Uchida, M Tachibana, S Kurita, K Kojima

    CHEMICAL PHYSICS LETTERS   400 ( 4-6 )   341 - 346   2004.12

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    DOI: 10.1016/j.cplett.2004.11.001

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  • Effect of intracrystalline water on longitudinal sound velocity in tetragonal hen-egg-white lysozyme crystals Reviewed

    M Tachibana, H Koizumi, K Kojima

    PHYSICAL REVIEW E   69 ( 5 )   2004.5

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    DOI: 10.1103/PhysRevE.69.051921

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  • Fluorescence property of polycarbonate related to radial-pattern formation Reviewed

    M Tanimura, M Tachibana, K Kojima

    JOURNAL OF APPLIED POLYMER SCIENCE   92 ( 1 )   468 - 473   2004.4

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    DOI: 10.1002/app.20016

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  • Temperature dependence of micro-hardness in tetragonal hen egg-white lysozyme single crystals

    H. Koizumi, M. Tachibana, K. Kojima

    Phil. Mag.   84   2961 - 2968   2004

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  • Identification of dislocations in large tetragonal hen egg-white lysozyme crystals by synchrotron white-beam topography Reviewed

    M Tachibana, H Koizumi, K Izumi, K Kajiwara, K Kojima

    JOURNAL OF SYNCHROTRON RADIATION   10   416 - 420   2003.11

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    DOI: 10.1107/S0909049503020417

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  • Photo-assisted growth and polymerization of C-60 'nano'whiskers Reviewed

    M Tachibana, K Kobayashi, T Uchida, K Kojima, M Tanimura, K Miyazawa

    CHEMICAL PHYSICS LETTERS   374 ( 3-4 )   279 - 285   2003.6

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    DOI: 10.1016/S0009-2614(03)00723-1

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  • Sound velocity and dynamic elastic constants of lysozyme single crystals (vol 332, pg 259, 2000)

    M Tachibana, K Kojima, R Ikuyama, Y Kobayashi, M Ataka

    CHEMICAL PHYSICS LETTERS   354 ( 3-4 )   360 - 360   2002.3

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  • Growth, defects and mechanical properties of protein single crystals. Reviewed

    M.Tachibana, K.Kojima

    Current Topics in Crystal Growth   6   35 - 49   2002

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  • Radial-pattern formation in the polycarbonate substratum of recordable compact disks Reviewed

    M Tanimura, Ishikawa, I, M Tachibana, K Shinozaki, K Kojima

    APPLIED PHYSICS LETTERS   79 ( 12 )   1778 - 1780   2001.9

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    DOI: 10.1063/1.1400778

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  • Temperature and photopolymerization effects in microhardness of C70 crystals

    M. Tachibana, T. Yamaguchi, K. Kojima, H. Sakuma

    Journal of Applied Physics   90 ( 1 )   470 - 474   2001.7

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    DOI: 10.1063/1.1375804

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  • Plastic deformation of C-60 single crystals Reviewed

    T Komatsu, M Tachibana, K Kojima

    PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES   81 ( 3 )   659 - 666   2001.3

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    DOI: 10.1080/01486101300060937

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  • Sound velocity and dynamic elastic constants of lysozyme single crystals

    M Tachibana, K Kojima, R Ikuyama, Y Kobayashi, M Ataka

    CHEMICAL PHYSICS LETTERS   332 ( 3-4 )   259 - 264   2000.12

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    DOI: 10.1016/S0009-2614(00)01267-7

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  • Screw dislocation lines in lysozyme crystals observed by Laue topography using synchrotron radiation Reviewed

    K Izumi, K Taguchi, Y Kobayashi, M Tachibana, K Kojima, M Ataka

    JOURNAL OF CRYSTAL GROWTH   206 ( 1-2 )   155 - 158   1999.10

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    DOI: 10.1016/S0022-0248(99)00344-9

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  • Single-wall carbon nanotubes from coal

    KA Williams, M Tachibana, JL Allen, L Grigorian, SC Cheng, SL Fang, GU Sumanasekera, AL Loper, JH Williams, PC Eklund

    CHEMICAL PHYSICS LETTERS   310 ( 1-2 )   31 - 37   1999.8

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    DOI: 10.1016/S0009-2614(99)00725-3

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  • Growth and dislocation characteristics of organic molecular crystals: 2,3-dimethylnaphthalene

    M Tachibana, K Kono, M Shimizu, K Kojima

    JOURNAL OF CRYSTAL GROWTH   198 ( Pt.1 )   665 - 669   1999.3

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    DOI: 10.1016/S0022-0248(98)01097-5

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  • Growth and mechanical properties of lysozyme crystals

    M Tachibana, Y Kobayashi, T Shimazu, M Ataka, K Kojima

    JOURNAL OF CRYSTAL GROWTH   198 ( Pt.1 )   661 - 664   1999.3

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    DOI: 10.1016/S0022-0248(98)01096-3

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  • Wavelength dependence of the photoinduced indentation hardening in C-60 crystals

    M Tachibana, K Kojima, H Sakuma, T Komatsu, T Sunakawa

    JOURNAL OF APPLIED PHYSICS   84 ( 4 )   1944 - 1946   1998.8

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    DOI: 10.1063/1.368324

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  • Photo-illumination hardening of C-60 crystals Reviewed

    M Tachibana, H Sakuma, K Kojima

    JOURNAL OF APPLIED PHYSICS   82 ( 9 )   4253 - 4258   1997.11

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  • Growth and structures of C-60 shells

    H Sakuma, M Tachibana, H Sugiura, K Kojima, S Ito, T Sekiguchi, Y Achiba

    JOURNAL OF MATERIALS RESEARCH   12 ( 6 )   1545 - 1550   1997.6

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    DOI: 10.1557/JMR.1997.0211

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  • Melt growth and defects in N-methylurea crystals Reviewed

    M Shimizu, M Tachibana, K Inoue, K Kojima

    JOURNAL OF CRYSTAL GROWTH   177 ( 1-2 )   135 - 139   1997.5

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  • Influence of defects on photoluminescence in C-60 crystals

    M Tachibana, K Nishimura, T Komatsu, T Sunakawa, K Kojima

    FULLERENES AND PHOTONICS IV   3142   229 - 235   1997

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    DOI: 10.1117/12.279250

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  • Photo-illumination hardening of C-60 crystals Reviewed

    M Tachibana, H Sakuma, T Komatsu, K Kojima

    FULLERENES AND PHOTONICS IV   3142   236 - 244   1997

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  • Growth, perfection, and mechanical properties of C-60 single crystals Reviewed

    M Tachibana, M Michiyama, H Sakuma, K Kikuchi, Y Achiba, K Kojima

    JOURNAL OF CRYSTAL GROWTH   166 ( 1-4 )   883 - 887   1996.9

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  • Thermal equilibrium defects in anthracene probed by positron annihilation Reviewed

    A Uedono, M Tachibana, M Shimizu, M Satoh, K Kojima, S Ishibashi, T Kawano, S Tanigawa

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS   35 ( 6A )   3623 - 3629   1996.6

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  • MELT GROWTH AND CHARACTERIZATION OF 2-METHYL-4-NITROANILINE CRYSTALS

    Masaru Tachibana, Masaaki Sato, Kenichi Kojima

    ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES   52   C518 - C518   1996

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  • GROWTH AND CHARACTERIZATION OF C-60 AND C-70 CRYSTALS.

    Kenichi Kojima, Masaru Tachibana

    ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES   52   C511 - C511   1996

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  • SLIP SYSTEMS IN C-60 SINGLE-CRYSTALS

    M TACHIBANA, H SAKUMA, M MICHIYAMA, K KOJIMA

    APPLIED PHYSICS LETTERS   67 ( 18 )   2618 - 2620   1995.10

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    DOI: 10.1063/1.114314

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  • Photoluminescence and structural defects of C60 single crystals

    M. Tachibana, K. Nishimura, K. Kikuchi, Y. Achiba, K. Kojima

    Journal of Luminescence   66-67 ( 1-6 )   249 - 252   1995

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    DOI: 10.1016/0022-2313(95)00147-6

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  • GROWTH AND MECHANICAL PROPERTY OF C60 SINGLE CRYSTALS Reviewed

    M TACHIBANA, M MICHIYAMA, K KIKUCHI, Y ACHIBA, K KOJIMA

    ADVANCED MATERIALS '93, I - A & B   14 ( A & B )   1273 - 1276   1994

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  • Growth and mechanical property of C60 single crystals(共著)

    M.Tachibana, M.Michiyama, K.Kikuchi, Y.Achiba, K.Kojima

    Trans. Mat. Res. Soc. Jpn.   14B ( 1/4 )   2527 - 2532   1994

  • Characteristics of grown-in dislocations in czochralski-grown benzophenone single crystals

    Masaru Tachibana, Qi Tang, Naoki Ide, Kenichi Kojima

    Japanese Journal of Applied Physics   33 ( 4R )   1995 - 2003   1994

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    DOI: 10.1143/JJAP.33.1995

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  • Temperature dependence of the microhardness of C60 crystals Reviewed

    M. Tachibana, M. Michiyama, K. Kikuchi, Y. Achiba, K. Kojima

    Physical Review B   49 ( 21 )   14945 - 14948   1994

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    DOI: 10.1103/PhysRevB.49.14945

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  • DISLOCATION-STRUCTURES IN UREA SINGLE-CRYSTALS BY X-RAY TOPOGRAPHY Reviewed

    M TACHIBANA, S HORIUCHI, JS WANG, K KOJIMA

    JOURNAL OF PHYSICS D-APPLIED PHYSICS   26 ( 8B )   B145 - B148   1993.8

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  • Characterization of Grown-in Dislocations in Benzophenone Single Crystals by X-Ray Topography Reviewed

    Masaru Tachibana, Shigeki Motomura, Akira Uedono, Kenichi Kojima, Qi Tang

    Japanese Journal of Applied Physics   31 ( 7 R )   2202 - 2205   1992

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    DOI: 10.1143/JJAP.31.2202

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Books

  • Fullerene Nanowhiskers

    Jenny Stanford Publishing  2019.2  ( ISBN:9814774871

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    Total pages:312  

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  • Fullerene nanowhiskers (2nd ed.)

    K. Miyazawa, Y. Ochiai, M. Tachibana, T. Kizuka, S. Nakamura( Role: Joint editorGrowth, structures, and mechanical properties of fullerene nanowhiskers)

    Pan Stanford Publishing  2019 

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  • Two-dimensional carbon : fundamental properties, synthesis, characterization, and applications

    Wu, Yihong, Shen, Zexiang, Yu, Ting

    Pan Stanford Publishing  2014.4  ( ISBN:9814411949

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    Total pages:346   Language:English  

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  • Two dimensional carbon: Fundamental properties, synthesis, characterization, and applications

    Masaru Tachibana( Role: Joint authorStructural Characterization of Carbon Nanowalls and their Potential Applications in Energy Devices)

    Pan Stanford Publishing  2014 

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  • ナノカーボンハンドブック

    エヌ・ティー・エス  2007 

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  • ユビキタス・センサ産業創出

    開発者  2007 

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MISC

  • タンパク質結晶の動力学的回折効果の観測

    鈴木凌, 小泉晴比古, 平野馨一, 熊坂崇, 小島謙一, 橘勝

    KEK Progress Report (Web)   ( 2018-7 )   ROMBUNNO.206 (WEB ONLY)   2018.12

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  • タンパク質結晶におけるX線の動力学的回折効果の観測

    鈴木凌, 小泉晴比古, 小泉晴比古, 平野馨一, 熊坂崇, 小島謙一, 橘勝

    Photon Factory News   36 ( 3 )   8‐12   2018.11

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  • Relationship between Solvation Structure and Crystal Quality for Solution Growth

    小泉晴比古, 宇田聡, 塚本勝男, 塚本勝男, 橘勝, 小島謙一, 宇治原徹, 宇治原徹

    結晶成長国内会議予稿集(CD-ROM)   47th   ROMBUNNO.31a‐A06   2018

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  • Observation of prismatic dislocation loops introduced by indentation in protein crystals

    Suzuki Ryo, Murata Hidenobu, Koizumi Haruhiko, Kojima Kenichi, Tachibana Masaru

    Meeting Abstracts of the Physical Society of Japan   73 ( 0 )   2522 - 2522   2018

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    DOI: 10.11316/jpsgaiyo.73.1.0_2522

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  • タンパク質結晶におけるX線の動力学的回折効果の観測 Invited Reviewed

    鈴木凌, 小泉晴比古, 平野馨一, 熊坂崇, 小島謙一, 橘勝

    PF NEWS   67 ( 1.2.3 )   85 - 99   2018

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  • SPring‐8 BL38B1の高性能化と利用技術開発

    馬場清喜, 奥村英夫, 仲村勇樹, 水野伸宏, 長谷川和也, 河野能顕, 上野剛, 梶原堅太郎, 木村滋, 鈴木凌, 橘勝, 山本雅貴, 熊坂崇

    日本結晶学会年会講演要旨集   2017   93   2017.11

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  • Dislocation motion and plastic deformation in pseudo-BCC protein crystals

    Suzuki Ryo, Murata Hidenobu, Koizumi Haruhiko, Tsukamoto Katsuo, Arai Yasutomo, Fukuyama Seijiro, Suzuki Yoshihisa, Kojima Kenichi, Tachibana Masaru

    Meeting Abstracts of the Physical Society of Japan   72 ( 0 )   2739 - 2739   2017

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    &lt;p&gt;我々は、これまでタンパク質結晶の塑性といった力学的性質の先導的な研究を行い、その塑性変形のメカニズムが転位の運動によるものであることを報告してきた。タンパク質結晶のひとつであるグルコースイソメラーゼ結晶は擬BCC構造をもつ。今回、グルコースイソメラーゼ結晶に導入された転位のX線トポグラフィ観察とキャラクタリゼーションに初めて成功した。発表ではBCC金属との比較と、タンパク質結晶のすべり変形の一般性について議論する。&lt;/p&gt;

    DOI: 10.11316/jpsgaiyo.72.1.0_2739

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  • Observation of dynamical effect on protein crystals in rocking curve measurements

    Suzuki Ryo, Murata Hidenobu, Koizumi Haruhiko, Hirano Keiichi, Sugiyama Hiroshi, Kumasaka Takashi, Kojima Kenichi, Tachibana Masaru

    Meeting Abstracts of the Physical Society of Japan   72 ( 0 )   2268 - 2268   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_2268

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  • タンパク質結晶の放射光X 線トポグラフィ Invited Reviewed

    橘 勝, 鈴木 凌, 小泉 晴比古, 若生 啓, 小島 謙一

    日本結晶成長学会誌   43 ( 2 )   101 - 109   2016

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  • 22pAQ-2 Characterization of grown-in dislocation in glucose isomerase crystals

    Suzuki R, Kishi T, Koizumi H, Tsukamoto K, Arai Y, Fukuyama S, Suzuki Y, Kojima K, Tachibana M

    Meeting Abstracts of the Physical Society of Japan   71 ( 0 )   2765 - 2765   2016

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    DOI: 10.11316/jpsgaiyo.71.1.0_2765

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  • 17aAB-9 Observation of stress-induced dislocations in Glucose Isomerase crystals by synchrotron monochromatic-beam X-ray topography

    Suzuki R, Kishi T, Koizumi H, Tsukamoto K, Arai Y, Fukuyama S, Suzuki Y, Kojima K, Tachibana M

    Meeting Abstracts of the Physical Society of Japan   70 ( 0 )   2441 - 2441   2015

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    DOI: 10.11316/jpsgaiyo.70.2.0_2441

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  • 10aAE-7 Evaluation for Perfection of Protein Crystals with Analyzing X-ray Digital Topography

    Wako K., Fujii D., Kishi T., Suzuki R., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   69 ( 2 )   706 - 706   2014.8

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  • Two-Dimensional Carbon Invited Reviewed

    2014.4

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    DOI: 10.1201/b15656

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  • 27aAN-2 Structure and ultraviolet light irradiation of C_<60> nanowhiskers in liquids

    Kano Ryosuke, Wakahara Takatsugu, Miyazawa Kun'ichi, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   821 - 821   2014.3

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  • 30aAL-9 Structural Analysis for Screw Dislocations Formed in Graphites

    Wako K., Oda T., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   945 - 945   2014.3

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  • 28pAM-11 Hardness of Hen Egg White Lysozyme Crystals on Evaporation time

    Kishi T., Tsukashima S., Tachibana M., Wako K., Kojima K.

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   932 - 932   2014.3

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  • 27aAN-4 Synthesis and structure of the vertically aligned C_<60> microtubes

    Miyazawa Kun'ichi, Shimomura Shuichi, Wakahara Takatsugu, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   821 - 821   2014.3

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  • カーボンナノウォールの衝撃圧縮法による透明グラファイトの合成

    嘉藤恭平, 中村和貴, 阿藤敏行, 庭瀬敬右, 中村一隆, 橘勝

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   61st   2014

  • 10aAE-8 Evaluation of Glucose Isomerase Crystals by X-ray topography

    Kishi Takeharu, Tsukamoto Katsuo, Suzuki Ryo, Tachibana Masaru, Koizumi Haruhiko, Wako Kei, Kojima Kenichi, Yoshizaki Izumi, Fukuyama Seijiro, Suzuki Yoshihisa

    Meeting Abstracts of the Physical Society of Japan   69 ( 0 )   707 - 707   2014

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  • Synthesis and structure of the vertically aligned C_<60> microtubes

    Miyazawa Kun'ichi, Kriyama Ryota, Wakahara Takatsugu, Shimomura Shuichi, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   68 ( 2 )   740 - 740   2013.8

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  • 26pXP-2 Structural change of fullerene nanowhiskers by heat treatment

    Kano Ryosuke, Tachibana Masaru, Miyazawa Kun'ichi, Wakahara Takatsugu, Hirata Chika

    Meeting abstracts of the Physical Society of Japan   68 ( 1 )   913 - 913   2013.3

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  • 27aXS-5 X-ray Digital Topography for Characterizing Perfection in Protein Crystals

    Wako K., Fujii D., Tsukashima S., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   68 ( 1 )   1030 - 1030   2013.3

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  • 27aXS-2 The plastic deformation behavior in orthorhombic hen-egg white lysozyme crystals

    Tsukashima Shiro, Fujii Daiki, Koizumi Haruhiko, Wako Kei, Kojima Kenichi, Tachibana Masaru

    Meeting Abstracts of the Physical Society of Japan   68 ( 0 )   1029 - 1029   2013

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  • 衝撃圧縮法による透明グラファイトの合成

    中村和貴, 阿藤敏行, 中村一隆, 庭瀬敬右, 橘勝

    炭素材料学会年会要旨集   40th   2013

  • Two-dimensional nanocarbon materials called carbon nanowalls : Structure, physical properties and applications

    TACHIBANA Masaru, YAMADA Shigeki

    ( 255 )   280 - 291   2012.11

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  • 20aAH-9 Structural Analysis for Screw Dislocations Formed in Graphites

    Wako K., Oda T., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   67 ( 2 )   871 - 871   2012.8

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  • 24pCD-10 Simulation for Structure of Screw Dislocations Formed in Few-layer Graphene

    Wako K., Oda T., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   67 ( 1 )   988 - 988   2012.3

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  • 27aCC-5 Growth mechanism of vertically aligned C_<60> microtubes

    Kuriyama Ryota, Miyazawa Kun'ichi, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   67 ( 1 )   920 - 920   2012.3

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  • 24pCD-8 Micro-Vickers Hardness In Protein Crystals

    Fujii D, Koizumi H, Kojima K, Tachibana M

    Meeting Abstracts of the Physical Society of Japan   67 ( 0 )   987 - 987   2012

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  • Enhancement of Crystal Perfection for Tetragonal Hen-egg White Lysozyme Crystals under Application of an External AC Electric Field

    Haruhiko Koizumi, Satoshi Uda, Kozo Fujiwara, Masaru Tachibana, Kenichi Kojima, Jun Nozawa

    Photon Factory Activity Report 2011 Part B: Users' Report   29   198-1 - 198-2   2012

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  • 26pTJ-4 Fabrication of vertically aligned fullerene microtubes

    Kuriyama Ryota, Miyazawa Kun'ichi, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   66 ( 1 )   873 - 873   2011.3

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  • Fabrication and electrical characteristics of C_<60> single-crystal field-effect transistors

    MAEDA Hiroaki, KURIYAMA Ryota, TACHIBANA Masaru

    2011 ( 14 )   15 - 18   2011.3

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  • 24aWY-8 Simulation for Structure of Screw Dislocations Formed in Inter-layer of Graphites II

    Wako K., Oda T., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   65 ( 2 )   896 - 896   2010.8

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  • 20aGS-8 Magnetic Properties of Carbon Nano Wall

    Yamada Shigeki, Yoshimura Hirofumi, Nukada Kazutoshi, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   65 ( 1 )   854 - 854   2010.3

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  • 21aHT-8 Simulation for Structure of Screw Dislocations Formed in Inter-layer of Graphites

    Wako K., Oda T., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   65 ( 1 )   984 - 984   2010.3

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  • 23aHS-8 Characterization of dislocations in monoclinic hen-egg white lysozyme crystals by synchrotron X-ray topography

    Sawaura T., Yamamoto Y., Kojima K., Sugiyama H., Hirano K., Tachibana M.

    Meeting abstracts of the Physical Society of Japan   65 ( 1 )   1010 - 1010   2010.3

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  • Structure of carbon nanowalls and their properties as negative electrodes for lithium ion battery

    Function & materials   30 ( 1 )   44 - 54   2010.1

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  • カーボンナノウォールの高速充放電リチウムイオン二次電池負極材への応用

    橘 勝, 棚池 修

    ニュ-ダイヤモンド   25 ( 4 )   34 - 36   2009.10

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  • 25aYE-2 Simulation of a Recovery Process of the 5-7 Pair Couple Defects in the Carbon Nanotubes

    Wako K., Oda T., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   64 ( 2 )   735 - 735   2009.8

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  • 27aYE-4 Structural characterization of graphite thin film fabricated by dc-plasma enhanced chemical vapor deposition

    Yoshimura Hirofumi, Yoshimura Akihiko, Kojima Kenichi, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   64 ( 2 )   773 - 773   2009.8

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  • 27aYE-5 Electronic Transport Properties of Graphite Thin Film Fabricated by PECVD

    Yamada Shigeki, Yoshimura Hirofumi, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   64 ( 2 )   773 - 773   2009.8

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  • 29pRB-14 Study on laser-induced detects in single wall carbon nanotubes by Raman spectroscopy. II

    Kang D., Hakamatsuka M., Kojima K., Tachibana M.

    Meeting abstracts of the Physical Society of Japan   64 ( 1 )   964 - 964   2009.3

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  • 27pRB-4 Study on slip dislocations in hen egg-white lysozyme crystals by Synchrotron X-ray topography

    Kimura K., Yamamoto Y., Mukobayasi Y., Kitajima N., Ro S., Sugiyama H., Kojima K., Tachibana M.

    Meeting abstracts of the Physical Society of Japan   64 ( 1 )   937 - 937   2009.3

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  • 30pYH-5 Simulation of a Recovery Process of the Structural Defect in the Carbon Nanotubes by the C_2 Dimer Irradiation

    Wako K., Oda T., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   64 ( 1 )   867 - 867   2009.3

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  • Synthesis of single-wall carbon nano-tubes from diesel shoot

    Material stage   8 ( 11 )   1 - 3   2009.2

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  • Crystal Perfection of Protein Crystals by Rocking-Curve Imaging Method

    WAKO KEI, YAMAMOTO YU, MUKOBAYASHI YU, KOISHI MAYUMI, YOSHIZAKI IZUMI, TSUKAMOTO KATSUO, TACHIBANA MASARU, KOJIMA KEN'ICHI

    結晶成長国内会議予稿集   39th   120   2009

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  • Growth rate of protein crystals under microgravity using FOTON-M3 Satellite

    TSUKAMOTO Katsuo, SAZAKI Gen, ONO Erika, KOJIMA Kenichi, TACHIBANA Masaru, KOISHI Mayumi, YOSHIZAKI Izumi, GARCIA RUIZ J. M, VLIEG E

    25 ( 4 )   730 - 730   2008.10

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  • 23aTG-6 Study on laser-induced detects in single wall carbon nanotubes by Raman spectroscopy.

    Kang D., Kato K., Kobayashi K., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   63 ( 1 )   797 - 797   2008.2

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  • 23aTG-7 Bending deformation of carbon nanotubes caused by a five-seven pair couple defect

    Wakao K., Oda T., Tachibana M., K. Kenichi

    Meeting abstracts of the Physical Society of Japan   63 ( 1 )   798 - 798   2008.2

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  • 24pPSA-51 Second harmonic generation from carbon nanotubes grown on quartz substrates

    Kudo M., Maruyama Y., Kato K., Tachibana M., Tanaka M., Suzuki T.

    Meeting abstracts of the Physical Society of Japan   63 ( 1 )   890 - 890   2008.2

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  • Japanese Protein Crystal Growth Experiments on FOTON-M3 mission

    YOSHIZAKI IZUMI, TSUKAMOTO KATSUO, TACHIBANA MASARU, KOJIMA KEN'ICHI

    宇宙航空研究開発機構特別資料 JAXA-SP-   ( 07-022 )   10P   2008.2

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  • Diesel soot as an electrode for the production of carbon nanotubes by electric arc-discharge

    TACHIBANA Masaru

    Proceedings of the IASTED International Conference (Nanotechnology and Applications (NANA 2008))   4   2008

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  • 23aTA-9 Growth process and structure of carbon nanowalls

    Yoshimura Hirofumi, Kitada Norihiro, Yamada Shigeki, Hirosawa Ichirou, Kojima Kenichi, Tachibana Masaru

    Meeting Abstracts of the Physical Society of Japan   63   784 - 784   2008

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    DOI: 10.11316/jpsgaiyo.63.2.4.0_784_1

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  • 23aTG-12 Growth mechanism and structure of carbon nanowalls

    Kitada Norihiro, Yoshimura Hirofumi, Kobayashi Ken-ichi, Kinoshita Ikuo, Nakai Hiroshi, Hirosawa Ichirou, Kojima Kenichi, Tachibana Masaru

    Meeting Abstracts of the Physical Society of Japan   63   799 - 799   2008

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    DOI: 10.11316/jpsgaiyo.63.1.4.0_799_2

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  • Growth and mechanical property of C_<60> nanowhiskers

    WATANABE Mami, KOJIMA Kenichi, TACHIBANA Masaru, MIYAZAWA Kun'ichi

    2007 ( 28 )   5 - 8   2007.9

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  • ディーゼル排ガス中の煤を原料に用いた単層カーボンナノチューブの生成

    内田貴司, 橘勝, 小島謙一

    応用物理学会学術講演会講演予稿集   68th ( 1 )   525   2007.9

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  • 22aTD-6 Study of electronic states of carbon nanowalls by Photoelectron spectroscopy

    Hayashi S., Kinoshita I., Tachibana M.

    Meeting abstracts of the Physical Society of Japan   62 ( 2 )   984 - 984   2007.8

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  • 22aTD-5 Nanostructure Analysis of Carbon Nanowalls

    Kobayashi Ken-ichi, Tanimura Makoto, Nakai Hiroshi, Yoshimura Akihiko, Yoshimura Hirofumi, Kojima Kenichi, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   62 ( 2 )   983 - 983   2007.8

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  • 24aRB-11 Stability of the Carbon Nanotubes that Contain 5-7 Pair Couple Defects under Bending Deformation

    Wako K., Oda T., Tachibana M., K. Kenichi

    Meeting abstracts of the Physical Society of Japan   62 ( 2 )   897 - 897   2007.8

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  • 24pTA-3 Crystal growth and dislocations for monoclinic lysozyme crystals

    Koishi M., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   62 ( 2 )   1018 - 1018   2007.8

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  • 24pTA-2 Analysis of dislocation by synchrotron X-ray topography of Orthorhombic hen egg-white lysozyme crystals

    Ohya N., Koishi M., Sugiyama H., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   62 ( 2 )   1018 - 1018   2007.8

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  • Characterization of dislocations in orthorhombic hen egg-white lysozyme crystals by synchrotron X-ray topography

    H. Koizumi, M. Shimizu, M. Tachibana, K. Kojima

    PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE   204 ( 8 )   2688 - 2693   2007.8

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  • Nanographite domains in carbon nanowalls

    K. Kobayashi, M. Tanimura, H. Nakai, A. Yoshimura, H. Yoshimura, K. Kojima, M. Tachibana

    JOURNAL OF APPLIED PHYSICS   101 ( 9 )   4   2007.5

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    The nanostructure of carbon nanowalls (CNWs), composed of a stack of several graphite sheets, was investigated by transmission electron microscopy. Our detailed analysis revealed that numerous graphite regions with an average size of about 20 nm were formed in the CNWs. The formation of these regions originates from the introduction of lattice defects such as dislocations and the slight rotation of the graphite sheets. On this basis, it is concluded that the graphite regions, so-called "nanographite domains," are the constitutional units of the CNWs. (c) 2007 American Institute of Physics.

    DOI: 10.1063/1.2728781

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  • Nanographite domains in carbon nanowalls

    K. Kobayashi, M. Tanimura, H. Nakai, A. Yoshimura, H. Yoshimura, K. Kojima, M. Tachibana

    JOURNAL OF APPLIED PHYSICS   101 ( 9 )   2007.5

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    The nanostructure of carbon nanowalls (CNWs), composed of a stack of several graphite sheets, was investigated by transmission electron microscopy. Our detailed analysis revealed that numerous graphite regions with an average size of about 20 nm were formed in the CNWs. The formation of these regions originates from the introduction of lattice defects such as dislocations and the slight rotation of the graphite sheets. On this basis, it is concluded that the graphite regions, so-called "nanographite domains," are the constitutional units of the CNWs. (c) 2007 American Institute of Physics.

    DOI: 10.1063/1.2728781

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  • Thermal relaxation kinetics of defects in single-wall carbon nanotubes

    Takashi Uchida, Masaru Tachibana, Kenichi Kojima

    JOURNAL OF APPLIED PHYSICS   101 ( 8 )   4   2007.4

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    The defects in single-wall carbon nanotubes irradiated with a 248 nm pulsed excimer laser were studied using Raman spectroscopy. The thermal relaxation kinetics of the laser-induced defects was examined at sample temperatures from 296 to 698 K. Two relaxation processes are revealed; one is the fast process with an activation energy of 0.4 eV and the other is the slow process with an activation energy of 0.7 eV. These two processes can correspond to vacancy-interstitial recombination and vacancy migration along the tube axis, respectively.

    DOI: 10.1063/1.2721751

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  • 18pXB-11 Laser-induced defects in SWNTs and HOPG

    Kato Kenichi, Uchida Takashi, Tachibana Masaru, Kojima Kenichi

    Meeting abstracts of the Physical Society of Japan   62 ( 1 )   939 - 939   2007.2

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  • 19pRA-6 Raman spectra of DNA-SWNT hybrids under various conditions

    Toita Sho, Kawamoto Hironori, Kojima Kenichi, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   62 ( 1 )   828 - 828   2007.2

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  • 20aRG-7 Kaman scattering spectra of C_<60> nanowhiskers in solution

    Watanabe M., Nakamura K., Miyazawa K., Kojima K., Tachibana M.

    Meeting abstracts of the Physical Society of Japan   62 ( 1 )   843 - 843   2007.2

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  • フラーレンナノウィスカーの育成、構造および物性

    橘 勝

    ナノカーボンハンドブック   2007

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  • 20aXB-1 Dislocation structures of the HEW-lysozyme crystals with some polymorphisms

    Ohya N, Koizumi H, Koishi M, Sugiyama H, Yoshizaki I, Tachibana M, Kojima K

    Meeting Abstracts of the Physical Society of Japan   62 ( 0 )   966 - 966   2007

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  • Thermal relaxation kinetics of defects in single-wall carbon nanotubes

    Takashi Uchida, Masaru Tachibana, Kenichi Kojima

    Journal of Applied Physics   101 ( 8 )   2007

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    The defects in single-wall carbon nanotubes irradiated with a 248 nm pulsed excimer laser were studied using Raman spectroscopy. The thermal relaxation kinetics of the laser-induced defects was examined at sample temperatures from 296 to 698 K. Two relaxation processes are revealed
    one is the fast process with an activation energy of 0.4 eV and the other is the slow process with an activation energy of 0.7 eV. These two processes can correspond to vacancy-interstitial recombination and vacancy migration along the tube axis, respectively. © 2007 American Institute of Physics.

    DOI: 10.1063/1.2721751

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  • 24pTA-15 Dislocations in tetragonal hen-egg white lysozyme crystals by means of synchrotron X-ray topography

    Mukobayashi Yu, Tachibana Masaru, Kojima Kenichi, Koizumi Haruhiko, Sugiyama Hiroshi

    Meeting Abstracts of the Physical Society of Japan   62 ( 0 )   1021 - 1021   2007

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  • 24pTA-4 Mechanical properties in orthorhombic lysozyme crystals

    Kitajima Natsuko, Koizumi Haruhiko, Tachibana Masaru, Kojima Kenichi

    Meeting Abstracts of the Physical Society of Japan   62 ( 0 )   1019 - 1019   2007

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  • ディーゼル排ガス中の煤を用いたカーボンナノチューブの生成

    金栗翔一, 谷村誠, 西本徹郎, 藤川直弘, 粟田和彦, 内田貴司, 橘勝, 小島謙一

    炭素材料学会年会要旨集   33rd   314 - 315   2006.12

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  • 25aYK-9 Characterization of laser-induced defects in SWNTs II

    Uchida Takashi, Tachibana Masaru, Kojima Kenichi

    Meeting abstracts of the Physical Society of Japan   61 ( 2 )   800 - 800   2006.8

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  • 25aYK-12 Growth mechanism and structural characterization of Carbon Nanowalls

    Yoshimura Hirofumi, Nakai Hiroshi, Yoshimura Akihiko, Kojima Kenichi, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   61 ( 2 )   801 - 801   2006.8

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  • 25pYB-3 Growth and structural characteristics of fullerene nanowhiskers

    Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   61 ( 2 )   694 - 694   2006.8

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  • 24aYF-1 Structural properties of C_<60> nanotubes annealed in vacuum

    Nakamura K., Miyazawa K., Kato R., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   61 ( 2 )   678 - 678   2006.8

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  • Contact pressure dependence of carrier mobility in cleaved tetracene single-crystal field-effect transistors

    Tomoyuki Nisikawa, Naoki Moriguchi, Takashi Anezaki, Akira Unno, Masaru Tachibana, Kenichi Kojima

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS   45 ( 6A )   5238 - 5240   2006.6

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  • Raman and transport studies in multi-walled carbon nanotubes

    K. Maejima, O. Suzuki, T. Uchida, N. Aoki, M. Tachibana, K. Ishibashi, Y. Ochiai

    Journal of Physics: Conference Series   38 ( 1 )   33 - 36   2006.5

  • The feature of the Breit-Wigner-Fano Raman line in DNA-wrapped single-wall carbon nanotubes

    H Kawamoto, T Uchida, K Kojima, M Tachibana

    JOURNAL OF APPLIED PHYSICS   99 ( 9 )   2006.5

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  • Impurity-induced defect and its effect on protein crystal perfection

    Yoshizaki, I, S Fukuyama, H Koizumi, M Tachibana, K Kojima, Y Matsuura, M Tanakae, N Igarashi, A Kadowaki, L Rong, S Adachi, S Yoda, H Komatsu

    JOURNAL OF CRYSTAL GROWTH   290 ( 1 )   185 - 191   2006.4

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  • Observation of all the components of elastic constants using tetragonal hen egg-white lysozyme crystals dehydrated at 42% relative humidity

    H Koizumi, M Tachibana, K Kojima

    PHYSICAL REVIEW E   73 ( 4 )   2006.4

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  • Carrier mobility and crystal perfection of tetracene thin film FET

    N Moriguchi, T Nishikawa, T Anezaki, A Unno, M Tachibana, K Kojima

    PHYSICA B-CONDENSED MATTER   376   276 - 279   2006.4

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  • 30aUB-4 Fabrication and Structures of Carbon Nanowalls

    Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   61 ( 1 )   956 - 956   2006.3

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  • 28pXD-10 Growth Mechanism and Structural Characterization of Carbon Nanowalls

    Yoshimura Hirofumi, Yoshimura Akihiko, Molina-Morales Pedro, Nakai Hiroshi, Kojima Kenichi, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   61 ( 1 )   939 - 939   2006.3

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  • 28aUA-2 Humidity sensitivity of DNA-wrapped carbon nanotube hybrids

    Kawamoto Hironori, Kojima Kenichi, Tachibana Masaru

    Meeting abstracts of the Physical Society of Japan   61 ( 1 )   825 - 825   2006.3

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  • 28pXD-9 Characterization of laser-induced defects in single-wall carbon nanotubes

    Uchida Takashi, Tanimura Makoto, Tachibana Masaru, Kojima Kenichi

    Meeting abstracts of the Physical Society of Japan   61 ( 1 )   939 - 939   2006.3

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  • Raman study of laser-induced defects in single-wall carbon nanotube bundles

    UCHIDA Takashi, TACHIBANA Masaru, KOJIMA Kenichi

    フラーレン・ナノチューブ総合シンポジウム講演要旨集   30th   177   2006.1

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  • Evidence for the presence of fullerence in diesel soot using laser desorption/ionization mass spectroscopy

    TACHIBANA Masaru

    J. Mass. Spectrom. Soc. Jpn   54 ( 2 )   39 - 44   2006

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    Intact soot exhausted from diesel engines from a large cargo ship and from a farm tractor, which work with heavy and light oil respectively, has been analyzed using laser desorption/ionization (LDI) mass spectrometry. Caged carbon clusters (or fullerene family) were detected as molecular ions M<sup>+·</sup> with relatively intense peaks at <i>m/z</i> 600, 720, and 840 corresponding to C<sub>50</sub>, C<sub>60</sub>, and C<sub>70</sub>, respectively. There were also other even number carbon clusters C<sub>2<i>n</i></sub> (<i>n</i>=20-142 or higher). Small carbon clusters C<sub><i>n</i></sub> (<i>n</i>=7-29) with the magic number <i>n</i>=7, 11, 15, 19, 23, and 27 were also observed in the LDI mass spectra. The LDI mass spectra of a fullerene C<sub>60</sub> (99%) and intact soot showed definite metastable ion peaks originating from successive C<sub>2</sub> loss from molecular ions. It was confirmed that under the same LDI conditions the laser vaporization of graphite never gives any products of the fullerene family or even number carbon clusters.

    DOI: 10.5702/massspec.54.39

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  • 01aD10 Crystal growth and dislocations of monoclinic hen egg-white lysozyme crystals(NCCG-36)

    Koishi M, Koizumi H, Ohya N, Sugiyama H, Yoshizaki I, Tachibana M, Kojima K

    Journal of the Japanese Association for Crystal Growth   33 ( 4 )   241 - 241   2006

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    The characteristics of crystal perfection in monoclinic hen egg-white (HEW) lysozyme crystals were observed by synchrotron x-ray topography and locking curve. As a result, the clear dislocation images were obtained by the topography. The locking curves from various diffraction planes showed anisotropic behaviors on the half-width. We will discuss the relationship between the dislocations and the half-width.

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  • 28pYA-7 Determination of the elastic constants of cross-linked tetragonal hen egg-white lysozyme crystals

    Koizumi H, Ohya N, Koishi M, Tachibana M, Kojima K

    Meeting Abstracts of the Physical Society of Japan   61 ( 0 )   941 - 941   2006

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  • 29pXD-3 Analysis of dislocations in protein crystals using monochromatic X-ray topography

    Ohya N, Koishi M, Koizumi H, Tachibana M, Sugiyama H, Kajiwara K, Kojima K

    Meeting Abstracts of the Physical Society of Japan   61 ( 0 )   949 - 949   2006

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  • 26aYK-7 Observation of dislocations in monoclinic lysozyme crystals by synchrotron X-ray topography

    Koishi M, Koizumi H, Ohya N, Sugiyama H, Yoshizaki I, Tachibana M, Kojima K

    Meeting Abstracts of the Physical Society of Japan   61 ( 0 )   813 - 813   2006

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  • タンパク質結晶の品質に及ぼす不純物の影響

    橘 勝

    日本結晶成長学会誌   33   2006

  • カーボンナノウォールの調製と構造

    橘 勝

    炭素素原料科学と材料設計VIII   2006

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  • Analysis of dislocation images in X-ray topography of protein crystals: tetragonal hen egg-white lysozyme crystals

    H Koizumi, M Tachibana, Yoshizaki, I, K Kojima

    PHILOSOPHICAL MAGAZINE   85 ( 31 )   3709 - 3717   2005.11

  • 21pXA-13 The fundamental physical properties in a multiwalled carbon nanotube

    Maejima K, Suzuki O, Uchida T, Aoki N, Tachibana M, Ochiai Y

    Meeting abstracts of the Physical Society of Japan   60 ( 2 )   710 - 710   2005.8

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  • 20aYN-8 Structural characterization of carbon nanowalls by means of Raman spectroscopy

    Yoshimura Akihiko, Tachibana Masaru, Kojima Kenichi, Molina-Morales Pedro, Nakai Hiroshi

    Meeting abstracts of the Physical Society of Japan   60 ( 2 )   811 - 811   2005.8

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  • 20aYN-7 Raman study of irradiation damage in single-wall carbon nanotube bundles

    Uchida Takashi, Tachibana Masaru, Kojima Kenichi

    Meeting abstracts of the Physical Society of Japan   60 ( 2 )   811 - 811   2005.8

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  • 27pYN-3 The fundamental properties of electrical conductivity in a multiwalled carbon nanotube

    Suzuki O, Oguri N, Maejima K, Uchida T, Aoki N, Tachibana M, Ochiai Y

    Meeting abstracts of the Physical Society of Japan   60 ( 1 )   827 - 827   2005.3

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  • 1. Nano structure produced in vacuum. formation of single wall carbon nano tube and Raman spectroscopy.

    橘勝, 内田貴司

    機械の研究   57 ( 1 )   66 - 73   2005.1

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  • 18aC07 The effects of impurity on defect formation in Lysozyme Crystals(NCCG-35)

    Yoshizaki Izumi, Rong Long, Adachi Satoshi, Komatsu Hiroshi, Koizumi Haruhiko, Tachibana Masaru, Kojima Kenichi, Matsuura Yoshiki, Fukuyama Seijiro

    Journal of the Japanese Association for Crystal Growth   32 ( 3 )   231 - 231   2005

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    The rocking curve width of tetragonal lysozyme crystals were measured. Typical full width half maximum (FWHM) of the rocking curve of crystals grown from a pure lysozyme solution were 0.004-0.006°, while those crystals containing 5% lysozyme dimer were 0.006-0.010°. X-ray topography experiments revealed that dislocations existed in crystals containing lysozyme dimer. Point bottomed etch pits were observed in contaminated crystals, but hardly no deep pits were observed in pure crystals. These dislocations are one of the causes of rocking width broadening.

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  • 27aXC-2 The effects of impurity on defect formation in Lysozyme Crystals

    Yoshizaki Izumi, Komatsu Hiroshi, Rong Long, Adachi Satoshi, Koizumi Haruhiko, Tachibana Masaru, Kojima Kenichi, Matsuura Yoshiki, Fukuyama Seijiro, Iimura Yoshikazu

    Meeting Abstracts of the Physical Society of Japan   60 ( 0 )   877 - 877   2005

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  • 24aYS-6 Determination of elastic constants in tetragonal hen egg-white lysozyme crystals II

    Koizumi H, Shimizu M, Tachibana M, Kojima K

    Meeting Abstracts of the Physical Society of Japan   60 ( 0 )   893 - 893   2005

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  • 24pYM-11 Observation of dislocations in lysozyme crystals using synchrotron white beam topography

    Shimizu M, Koizumi H, Yoshizaki I, Tachibana M, Kojima K

    Meeting Abstracts of the Physical Society of Japan   60 ( 0 )   896 - 896   2005

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  • 22aYM-9 Analysis of dislocations in protein crystals using X-ray topography

    Koizumi H, Tachibana M, Kojima K

    Meeting Abstracts of the Physical Society of Japan   60 ( 0 )   834 - 834   2005

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  • 18aC08 Determination of the elastic constants of cross-linked tetragonal hen egg-white lysozyme crystals(NCCG-35)

    Koizumi Haruhiko, Tachibana Masaru, Kojima Kenichi

    Journal of the Japanese Association for Crystal Growth   32 ( 3 )   232 - 232   2005

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    Longitudinal and transverse sound velocity of cross-linked tetragonal hen egg-white (HEW) lysozyme crystals was measured by ultrasonic pulse-echo method.

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  • 単層カーボンナノチューブの共鳴ラマン散乱の温度依存性

    内田貴司, 栗田聡, 橘勝, 小島謙一

    応用物理学会学術講演会講演予稿集   65th ( 1 )   396   2004.9

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  • フラーレン結晶の強度と転位 Reviewed

    橘 勝, 小島 謙一

    日本物理学会誌   59 ( 7 )   444 - 451   2004.7

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    DOI: 10.11316/butsuri1946.59.444

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  • 27pZP-5 Crystallinity of tetracene thin-film and property of the FET

    Anezaki T., Unno A., Hirai T., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   59 ( 1 )   838 - 838   2004.3

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  • 30pWP-4 Growth and structures of fullerene 'nano' whiskers

    KOBAYASHI Ken-ichi, AWATANI Tadashi, TACHIBANA Masaru, KOJIMA Kenichi

    Meeting abstracts of the Physical Society of Japan   59 ( 1 )   934 - 934   2004.3

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  • 28aYE-6 X-ray Topography of Protein Crystals

    Tachibana M.

    Meeting abstracts of the Physical Society of Japan   59 ( 1 )   365 - 365   2004.3

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  • 27pZP-5 Crystallinity of tetracene thin-film and property of the FET

    Anezaki T., Unno A., Hirai T., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   59 ( 1 )   538 - 538   2004.3

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  • Effect of intracrystalline water on longitudinal sound velocity in tetragonal hen-egg-white lysozyme crystals

    M. Tachibana, H. Koizumi, K. Kojima

    Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics   69 ( 5 )   5   2004

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  • 27aWF-13 Determination of elastic constants in tetragonal hen egg-white lysozyme crystals I

    Koizumi H, Shimizu M, Tachibana M, Kojima K

    Meeting Abstracts of the Physical Society of Japan   59 ( 0 )   352 - 352   2004

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  • 27pXT-7 Observation of dislocations in orthorhombic lysozyme crystals by synchrotron white beam topography

    Shimizu M, Koizumi H, Tachibana M, Kojima K, Sugiyama H, Kajiwara K, Izumi K

    Meeting Abstracts of the Physical Society of Japan   59 ( 0 )   952 - 952   2004

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  • 26aA12 Elastic constants of tetragonal hen egg-white lysozyme crystals(NCCG-34)

    Koizumi H, Shimizu M, Tachibana M, Kojima K

    Journal of the Japanese Association for Crystal Growth   31 ( 3 )   202 - 202   2004

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    Longitudinal and transverse sound velocity of tetragonal hen egg-white (HEW) lysozyme crystals dried at 42% relative humidity (RH) was measured by ultrasonic pulse-echo method. Thus, six elastic constants of the dried tetragonal HEW lysozyme crystals were determined.

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  • タンパク質結晶の放射光白色X線トポグラフィ

    橘 勝, 小泉晴比古, 小島謙一

    PHOTON FACTORY NEWS   22   17 - 23   2004

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  • Synchrotron X-ray topography of protein crystals

    M. Tachibana, H. Koizumi, K. Kojima

    PHOTON FACTORY NEWS   22   17 - 23   2004

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  • タンパク質単結晶の放射線白色トポグラフィ

    橘 勝, 小泉, 晴比古, 小島 謙一

    Photon Factory News   22   21 - 27   2004

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  • Identification of dislocations in large tetragonal hen egg-white lysozyme crystals by synchrotron white-beam topography

    M.Tachibana, H. Koizumi, K. Izumi, K. Kajiwara, K. Kojima

    J. Synchrotron Rad.   30 ( 3 )   416 - 420   2003.11

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    DOI: 10.1107/S0909049503020417

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  • Dislocation Images in C_<60> crystal by synchrotron X-Ray topograph

    Aota N, Uchida T, Tachibana M, Kojima K

    Meeting abstracts of the Physical Society of Japan   58 ( 2 )   863 - 863   2003.8

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  • Growth and structures of fullerene'nano'whiskers

    KOBAYASHI Ken-ichi, TACHIBANA Masaru, KOJIMA Kenichi, TANIMURA Makoto, MIYAZAWA Kun'ichi

    Journal of the Japanese Association of Crystal Growth   30 ( 3 )   37 - 37   2003.7

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    A new type of C_<60> needle-like crystal, or C_<60> 'nano' whiskers were grown by a liquid-liquid interfacial precipitation method. It was found that the growth of the nanowhiskers was promoted under illumination. From Raman soattering measurements, it is shown C_<60> moleoules in the pristine nanowhiskers are bonded by weak van der Waals forces. The rate of the photo-polymerization in C_<60> nanowhiskers is much faster than that in C_<60> bulk crystals.

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  • Crystal growth and white synchrotron beam topography of orthorhombic lysozyme crystals

    SHIMIZU M, KOIZUMI H, TACHIBANA M, IZUMI K, KAJIWARA K, KOJIMA K

    Journal of the Japanese Association for Crystal Growth   30 ( 3 )   85 - 85   2003

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    Orthorhombic hen egg-white lysozyme crystals were grown by the batch method. The largest grown crystal is about 18mm×6.6mm×4mm. X-ray topographs of those orthorhombic lysozyme crystals were taken by using white synchrotron radiation and some dislocation lines were observed in the topographs.

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  • The mechanical property of lysozyme single crystals

    Koizumi H, Ishimoto M, Shimizu M, Tachibana M, Kojima K

    Meeting Abstracts of the Physical Society of Japan   58 ( 0 )   337 - 337   2003

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  • Temperature dependence of the Raman spectra of single-wall carbon nanotubes

    Uchida Takashi, Tachibana Masaru, Kojima Kenichi

    Meeting abstracts of the Physical Society of Japan   57 ( 2 )   720 - 720   2002.8

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  • フラーレン結晶の機械的強度

    橘勝, 小島謙一, 内田貴司

    日本金属学会講演概要   130th   235   2002.3

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  • 27aXR-6 The effect of water on hardness of lysozyme single crystals

    Koizumi H, Kawamoto H, Tachibana M, Kojima K

    Meeting Abstracts of the Physical Society of Japan   57 ( 0 )   915 - 915   2002

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  • Synchrotron radiation topography of lysozyme single crystals

    Koizumi H, Kawamoto H, Tachibana M, Kojima K

    Journal of the Japanese Association for Crystal Growth   29 ( 2 )   69 - 69   2002

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    Tetragonal hen egg-White lysozyme crystals were grown by the solubility-gradient method. Laue topography using the synchrotron radiation was applied for the assessment of the imperfection of the grown crystals. Some defect images were clearly observed on the topographs. The identifications of the defects are presented.

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  • Synchrotron radiation topography of Iysozyme single crystals

    Koizumi H, Tachibana M, Kojima K, Izumi K, Kajiwara K

    Meeting Abstracts of the Physical Society of Japan   57 ( 0 )   818 - 818   2002

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  • Effect of temperature and illumination on microhardness of fullerene crystals

    Tachibana M, Uchida T, Ogawa M, Kojima K

    Meeting abstracts of the Physical Society of Japan   56 ( 2 )   673 - 673   2001.9

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  • Elasticity and plasticity of lysozyme crystals

    Tachibana M, Koizumi H, Kawamoto H, Kojima K

    Meeting Abstracts of the Physical Society of Japan   56 ( 0 )   777 - 777   2001

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  • Lattice Defects in Lysozyme Crystals Grown by Concentration Gradient Method

    Izumi K., Yoshida H., Taguchi K., Takagi T., Tachibana M., Kojima K., Kajiwara K., Ataka M.

    Meeting abstracts of the Physical Society of Japan   55 ( 2 )   747 - 747   2000.9

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  • 31a-N-5 Growth and Lattice Defects of Lysozyme Crystals

    Izumi K., Taguchi K., Kobayashi Y., Tachibana M., Kojima K., Ataka M.

    Meeting abstracts of the Physical Society of Japan   54 ( 1 )   97 - 97   1999.3

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  • Influence of Defects on Photoluminescence in C_<60> crystals

    SUNAKAWA T., TACHIBANA M., KOJIMA K.

    Meeting abstracts of the Physical Society of Japan   53 ( 2 )   311 - 311   1998.9

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  • Characterization of Dislocations in 2,3-Dimethylnaphthalene single crystals

    KONO K., TACHIBANA M., KOJIMA K.

    Meeting abstracts of the Physical Society of Japan   53 ( 2 )   118 - 118   1998.9

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  • Cleavage of lysozyme single crystal

    KOBAYSHI Y., SHIMADZU T., TACHIBANA M., KOJIMA K., ATAKA M.

    Meeting abstracts of the Physical Society of Japan   53 ( 2 )   118 - 118   1998.9

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  • Growth and Lattice Defects of Lysozyme Crystals V

    IZUMI K., TAGUCHI K., KOBAYASHI Y., TACHIBANA M., KOJIMA K., ATAKA M.

    Meeting abstracts of the Physical Society of Japan   53 ( 2 )   97 - 97   1998.9

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  • Characterization of dislocations in 2,3-Dimethyinaphthalene single crystals

    KONO K., TACHIBANA M., KOJIMA K.

    Meeting abstracts of the Physical Society of Japan   53 ( 1 )   107 - 107   1998.3

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  • Photoluminescence of C_<60> Shell

    SUNAKAWA T., TACHIBANA M., KOJIMA K.

    Meeting abstracts of the Physical Society of Japan   53 ( 1 )   227 - 227   1998.3

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  • 6a-S-9 Mechanical properties of C_60 single crystals II

    Komatsu T., Sakuma Y., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   52 ( 2 )   102 - 102   1997.9

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  • Growth and dislocations in 2, 3-dimethy inaphthalene crystals

    KONO K., SHIMIZU M., TACHIBANA M., KOJIMA K.

    Journal of the Japanese Association of Crystal Growth   24 ( 2 )   152 - 152   1997.7

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    2, 3-dimethylnaphthalene crystals with large size and high quality were grown. from the melt by Bridgman method. Not only grown-in dislocations but also slip dislocations in the crystals were characterized by X-ray topography.

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  • Melt growth and defects in N-methylurea crystals

    SHIMIZU M., INOUE K., KONO K., TACHIBANA M., KOJIMA K.

    Journal of the Japanese Association of Crystal Growth   24 ( 2 )   151 - 151   1997.7

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    N-methylurea crystals, which is one of a few nonlinear optical crystals for ultraviolet light, were grown from the melt by Czochralski method and their perfections were assessed by X-ray topography. The crystal defects, especially dislocations, were individually observed on the topographs, and characterized.

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  • Mechanical character istics of Iysozyme crystals

    SHIMAZU S., KOBAYASHI Y., TACHIBANA M., KOJIMA K., ATAKA M.

    Journal of the Japanese Association of Crystal Growth   24 ( 2 )   103 - 103   1997.7

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    Hen-egg white lysozyme crystals with tetragonal structure was grown by solibility-gradient method using NiCl_2 as a precipitant. Mechanical characteristics, i.e. stress-strain curve.Vickers microhardness, and cleavage, of the grown crystals were investigated.

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  • 29a-E-8 Characterization of dislocations in N-methylurea single crystals

    Shimizu M., Inoue K., Tachibana M., Kojima K.

    Meeting abstracts of the Physical Society of Japan   52 ( 1 )   114 - 114   1997.3

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  • 29a-E-9 Photo-illumination hardening of C_<60> crystals

    Sakuma H., Tachibana M., Kikuchi K., Achiba Y., Kojima K.

    Meeting abstracts of the Physical Society of Japan   52 ( 1 )   114 - 114   1997.3

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  • Mechanical properties of C_<60> single crystals

    Komatsu T., Sakuma H., Tachibana M., Kojima K.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1996 ( 2 )   27 - 27   1996.9

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  • Mechanical properties of hen egg-white lysozyme single crystals

    Shimadzu T., Tachibana M., Kojima K., Ataka M.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1996 ( 2 )   27 - 27   1996.9

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  • Grown-in Defects in Organic Non-linear Optical Crystals

    TACHIBANA M., SATO M., KOJIMA K.

    Journal of the Japanese Association of Crystal Growth   23 ( 3 )   158 - 158   1996.7

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  • ICCG-11 (Part 2)

    Tachibana Masaru, Kojima Kenichi

    Journal of the Japanese Association of Crystal Growth   22 ( 5 )   414 - 415   1995.12

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  • 30p-N-7 Characterization of Dislocations in 2, 3-Dimethylnaphthalene Single Crystals by X-ray Topography

    Shimizu M., Tachibana M., Kojima K.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1995 ( 2 )   74 - 74   1995.9

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  • CZ法によるベンゾフェノン単結晶の育成と完全性の評価 : 有機結晶(一般)I

    橘 勝, 唐 騏, 小島 謙一

    日本結晶成長学会誌   21 ( 3 )   260 - 260   1994.7

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  • C_<60>単結晶の育成と力学的性質II : 気相成長II

    道山 学, 橘 勝, 小島 謙一

    日本結晶成長学会誌   21 ( 3 )   329 - 329   1994.7

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  • 2,3-ジメチルナフタレン単結晶の育成と転位の特性 : 有機結晶(一般)I

    清水 幹郎, 佐久間 裕子, 橘 勝, 小島 謙一

    日本結晶成長学会誌   21 ( 3 )   261 - 261   1994.7

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  • 28p-P-9 Crystal Defects and Triplet Exciton Traps in Anthracene Crystals II

    Tachibana M, Shimizu M, Kojima K

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   49 ( 2 )   28 - 28   1994.3

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  • 29aB8 C_<60>結晶の育成と力学的性質(有機結晶II)

    道山 学, 橘 勝, 小島 謙一

    日本結晶成長学会誌   20 ( 2 )   206 - 206   1993.7

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  • 31p-D-4 Crystal Defects and Triplet Exciton Triplet Exciton Traps in Organic Crystals

    Shimizu M., Tachibana M., Kojima K.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   48 ( 2 )   46 - 46   1993.3

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  • 25p-H-13 X-Ray Topographs of Dislocations in Benzophenone Crystals III

    Tang Q, Wang J, Tachibana M, Kojima K

    1992 ( 2 )   22 - 22   1992.9

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  • 25p-H-6 Structural Imperpections and Triplet Exciton Traps In Anthracene Crystals

    Ikegaya K, Shimizu M, Tachibana M, Kojima K

    1992 ( 2 )   19 - 19   1992.9

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  • 28p-K-3 X-ray topographs of dislocations in benzophenone single crystals

    Tachibana M., Tang K., Uedono A., Motomura S., Kojima K.

    46 ( 2 )   38 - 38   1991.9

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▼display all

Presentations

  • Characteristics and potential applications of carbon nanowalls synthesized by plasma-enhanced chemical vapor deposition Invited International conference

    Masaru Tachibana

    The 17th International Symposium on Bioscience and Nanotechnology  2019.12  The Bio-Nano Electronics Research Centre, Toyo University

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    Venue:Kawagoe Campus, Toyo University, Japan   Country:Japan  

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  • SYNTHESIS OF FE-N-DOPED CARBON NANOWALL FOR OXYGEN REDUCTION REACTION International conference

    Ryo Yoshie, Moeka Taniguchi, Kazuma Akikubo, Akira Tateno, Norihito Kawaguchi, Masaru Tachibana

    carbon 2018  2018.7 

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  • SELF-PATTERNING OF C60 SHEET CRYSTALS BY LIQUID-LIQUID INTERFACIAL PRECIPITATION METHOD International conference

    Saori Yamamoto, Hidenobu Murata, Yuko Kaneda, Makoto Tanimura, Masaru Tachibana

    Carbon 2018  2018.7 

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  • Synthesis of graphene by oxidation and reduction of Cu with alcohol chemical vapor deposition International conference

    Yuya Ogata, Marin Tsujimato, Masaru Tachibana

    Carbon 2018  2018.7 

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  • Polymerization of solvated C60 crystals under pressure International conference

    Gonnokami. H, Murata. H, Tachibana. M

    Carbon 2018  2018.7 

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  • Carbon nanowalls and related materials as electrodes in lithium-ion batteries and fuel cells Invited International conference

    TACHIBANA Masaru

    International conference on functional carbons  2017.11 

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  • C70カーボンナノウィスカーの育成と力学的性質

    五味田 綾香, 橘 勝

    第48回炭素材料学会年会  2021.12 

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    Venue:オンライン  

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  • ピリジン溶液から育成されたC60ナノウィスカーの機械特性と構造

    渡辺 雅, 橘 勝

    令和4年度 日本結晶学会年会  2022.11 

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  • 結晶成長・溶解過程におけるタンパク質結晶の微小なねじれの観測

    阿部 満理奈, 橘 勝

    第51回結晶成長国内会議  2022.11 

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  • グルコースイソメラーゼ結晶の結晶多形とねじれ

    鈴木 凌, 橘 勝

    第51回結晶成長国内会議  2022.11 

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  • 水和ゲルを内包したタンパク質結晶の力学特性

    鈴木 凌, 橘 勝

    日本機械学会 M&M 2022 材料力学カンファレンス  2022.9 

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  • 架橋タンパク質結晶の圧縮試験による力学特性の評価

    高久 大輝, 橘 勝

    日本機械学会 M&M 2022 材料力学カンファレンス  2022.9 

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  • C60-ピリジンナノウィスカーをベースとした電界効果トランジスタの測定

    御嶽 侑史, 橘 勝

    第31回日本MRS年次大会  2021.12 

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    Venue:パシフィコ横浜  

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  • C70 ナノウィスカーの育成と弾性挙動

    五味田 綾香, 橘 勝

    第31回日本MRS年次大会  2021.12 

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    Venue:パシフィコ横浜  

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  • 植物種子由来炭素量子ドットの光学特性

    中村勇太, 橘 勝

    第31回日本MRS年次大会  2021.12 

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    Venue:横浜  

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  • タンパク質結晶の折れた成長転位の観察

    鈴木 凌, 橘 勝

    第50回結晶成長国内会議  2021.10 

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    Venue:オンライン  

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  • 結晶成長過程におけるタンパク質結晶の微小なねじれの観察

    阿部 満理奈, 橘 勝

    第50回結晶成長国内会議  2021.10 

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  • Perfection of protein crystals by X-ray diffraction Invited International conference

    TACHIBANA Masaru

    International Symposium & School on Crystal Growth Fundamentals  2018.11 

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  • Mechanical properties and structure of C60 nanowhiskers grown from pyridine solution

    2022.12 

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  • Extraction and characterization of Carbon quantum dots from Brown coal

    2022.12 

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  • タンパク質結晶の育成と構造的・力学的性質の研究 Invited

    橘 勝

    2023年度第1回iBIX研究会  2023.9 

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  • Electroluminescent Carbon Dots Derived from Plant Seeds

    Ken Inoue, Masaru Tachibana

    33rd International Conference on Diamond and Carbon Materials  2023.9 

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  • Pressure-induced transformation of nano-graphite at room temperature

    Masaru Tachibana

    33rd International Conference on Diamond and Carbon Materials  2023.9 

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  • Observation of slight twisting in dislocation-free protein crystals

    Ryo Suzuki, Masaru Tachibana

    26TH CONGRESS AND GENERAL ASSEMBLY OF THE INTERNATIONAL UNION OF CRYSTALLOGRAPHY (IUCr2023)  2023.8 

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  • Dynamical X-ray diffraction of high-quality protein crystals

    Ryo Suzuki, Masaru Tachibana

    26TH CONGRESS AND GENERAL ASSEMBLY OF THE INTERNATIONAL UNION OF CRYSTALLOGRAPHY (IUCr2023)  2023.8 

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  • 放射光X線トポグラフィによるタンパク質単結晶中の微小なねじれの観測

    阿部 満理奈, 橘 勝

    第36回日本放射光学会年会・放射光科学合同シンポジウム  2023.1 

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  • Raman study on carbon nanowalls under high pressure

    2022.12 

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  • Field effect transistor based on C70 single-crystal needles

    2022.12 

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  • カーボンナノウォールの高圧下における構造変換

    新井 智也、橘 勝

    第63回高圧討論会  2022.12 

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  • (招待講演)C60ナノウイスカーの育成と力学的性質

    橘 勝

    第68回応用物理学会学術講演会  2007 

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  • (招待講演)カーボンナノウォールの生成とその構造

    橘 勝

    日本物理学会第61回年次大会  2006 

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  • (招待講演)フラーレンナノウイスカーの生成と構造評価

    橘 勝

    日本物理学会2006年秋季大会  2006 

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  • (Invited Lecture) Photo-assisted growth of C60 nanowhiskers Invited

    The Quantum Transport Nano-Hana International Workshop on Applications for Ubiquitous Electronics using Nano-Materials and Nano-Devices (GTNH2006)  2006 

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  • (Invited Lecture) X-ray topography of protein crystals (Invited Lecture) Invited

    Mini-International Symposium on recent topics on protein crystal growth and its contribution to high resolution protein crystal growth for diffraction experiments  2006 

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  • X線回折によるカーボンナノウォールの構造評価

    吉江 亮, 橘 勝

    第26回日本MRS年次大会  2016.12 

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  • 液-液界面析出法によるC70 ナノウィスカーの生成条件

    早瀬 太皓, 橘 勝

    第26回日本MRS年次大会  2016.12 

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  • C70ナノウィスカーの育成条件と構造評価

    早瀬 太皓, 橘 勝

    日本物理学会 2016年秋季大会  2016.9 

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  • 2. 「アルコールCVD法を用いた絶縁体基板上へのナノカーボンの生成

    辻本 茉里奈, 橘 勝

    日本物理学会 2016年秋季大会  2016.9 

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  • 斜方晶リゾチーム結晶の微小硬さと塑性変形

    鈴木 凌, 橘 勝

    日本物理学会 2016年秋季大会  2016.9 

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  • Efficient Growth of C70 Nanowhiskers By Liquid-Liquid Interfacial Precipitation Method International conference

    Hiroaki Hayase, Masaru Tachibana

    The 18th International Conference on Crystal Growth and Epitaxy  2016.8 

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  • Characterization of grown-in dislocation in high quality glucose isomerase crystals by synchrotron X-ray topography International conference

    Ryo Suzuki, Masaru Tachibana

    The 18th International Conference on Crystal Growth and Epitaxy (ICCGE-18)  2016.8 

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  • C₆₀(Ferrocene)₂の圧力誘起相転移と光照射効果

    権守 宏通, 橘 勝

    新学術領域「ナノ構造情報のフロンティア開拓-材料科学の新展開」第4回若手の会  2016.7 

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  • 絶縁体上に成膜した炭素材料の微細構造観察

    辻本 茉里奈, 橘 勝

    新学術領域「ナノ構造情報のフロンティア開拓-材料科学の新展開」第4回若手の会  2016.7 

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  • タンパク質結晶における完全結晶と微小ねじれの観測 Invited

    橘 勝

    水和ナノ構造研究会  2012.4 

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  • (招待講演)テトラセン単結晶の育成と電界効果トランジスタの作製

    橘 勝

    第54回応用物理学会関係連合講演会  2007 

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  • Fe-N-doped carbon catalysts prepared by PECVD/sputtering system for fuel cells International conference

    TACHIBANA Masaru

    Carbon 2017  2017.7 

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  • Bending deformation of C70 nanowhiskers by liquid-liquid interfacial precipitation method International conference

    TACHIBANA Masaru

    Carbon 2017  2017.7 

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  • Synthesis and properties of Fe-N-doped carbon catalysts and fullerene nanowhiskers Invited

    TACHIBANA Masaru

    CSIRO  2017.7 

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  • C70ナノウィスカーの育成と弾性特性

    舟守 勇斗, 橘 勝

    第12回ナノテク交流シンポジウム  2017.3 

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  • 10-10mで測るカーボンマテリアル ~X線回折による評価~

    谷口 萌花, 橘 勝

    学生による自主研究の祭典 第6回 サイエンス・インカレ  2017.3 

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  • 三斜晶リゾチーム結晶のビッカース硬さ

    重本 知華, 橘 勝

    第12回ナノテク交流シンポジウム  2017.3 

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  • C60-CCl4結晶の高圧下における構造変換

    権守 宏通, 橘 勝

    第12回ナノテク交流シンポジウム  2017.3 

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  • C60単結晶を用いた電界効果トランジスタの構築

    佐伯 雄大, 橘 勝

    第12回ナノテク交流シンポジウム  2017.3 

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  • C60板状結晶の自発的パターン形成

    山本 早織, 橘 勝

    第12回ナノテク交流シンポジウム  2017.3 

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  • アルコールCVD法による絶縁体基板上へのグラフェンの直接生成

    辻本 茉里奈, 橘 勝

    第64回応用物理学会春季学術講演会  2017.3 

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  • 自己組織化するC60ナノシート

    山本 早織, 橘 勝

    第26回日本MRS年次大会  2016.12 

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  • X線トポグラフィによるタンパク質結晶の完全性の評価~動力学的回折と微小ねじれの観測~ Invited

    橘 勝

    日本結晶成長学会(JCCG-50)  2021.10 

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  • タンパク質結晶における完全結晶と微小ねじれの観測 Invited

    橘 勝

    水和ナノ構造研究会  2021.4 

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  • 天然物から炭素量子ドットの簡易合成 Invited

    橘 勝

    電気化学会第381回蛍光体同学会  2020.11 

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  • Carbon Nanowalls and Its Potential Applications to Energy Devices Invited International conference

    TACHIBANA Masaru

    2019 Symposium for Nanotechnology & Micro Energy Storage Device Science and Technology  2019.8  Tsinghua Shenzhen International Graduate School

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    Venue:Shenzhen, China  

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Industrial property rights

  • 炭素量子ドットの製造方法および炭素量子ドット

    橘勝, ダガール・アカンシャ

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    Application no:特願2019-195216  Date applied:2019.10

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  • 炭素量子ドット及び炭素量子ドットの製造方法

    橘勝, ダガール・アカンシャ

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    Application no:特願2019-090961  Date applied:2019.5

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  • グラフェン膜、複合体、及びそれらの製造方法

    青田 奈津子, 會田 英雄, 橘 勝, 森迫 詩陽

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    Application no:特願2015-166432  Date applied:2015.8

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  • グラフェン膜、複合体、及びそれらの製造方法

    青田 奈津子, 會田 英雄, 橘 勝, 森迫 詩陽

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    Application no:特願2015-166434  Date applied:2015.8

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Research Projects

  • Study on structural transfomation and mechnaical properties of fullerene solvated crystals

    Grant number:25K08281  2025.4 - 2028.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

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    Grant amount:\4680000 ( Direct Cost: \3600000 、 Indirect Cost:\1080000 )

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  • Dynamic control of crystallization by laser towards innovative organic materials

    Grant number:22H00302  2022.4 - 2026.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Grant amount:\43550000 ( Direct Cost: \33500000 、 Indirect Cost:\10050000 )

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  • Study on growth control and mechanical properties of fullerene nanowhiskers

    Grant number:21K04654  2021.4 - 2024.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

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    Grant amount:\4160000 ( Direct Cost: \3200000 、 Indirect Cost:\960000 )

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  • Mechanism of inflammatory response on digestive tract by plastic nanoparticles

    Grant number:20K21725  2020.7 - 2023.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Research (Exploratory)

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    Grant amount:\6370000 ( Direct Cost: \4900000 、 Indirect Cost:\1470000 )

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  • Potential application of carbon nanowalls to fuel cell electrodes

    Grant number:17K06797  2017.4 - 2020.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Tachibana Masaru

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    Grant amount:\4680000 ( Direct Cost: \3600000 、 Indirect Cost:\1080000 )

    We have studied on synthesis of carbon nanowall (CNW) catalysts and the mechanism of the catalytic activity. N-, Fe-, and Fe-N-doped CNW catalysts were synthesized by dc plasma-enhanced chemical vapor deposition with sputtering we developed. It was found that Fe-N-doped CNW catalysts exhibit high oxygen reduction reaction (ORR) activity exceeding the onset potential of 0.9 V. It was clarified that the ORR effectively occurs on Fe-N rather than C neighboring N. Both Fe-N on the surface and inside of CNW was found to be useful for the ORR activity. The control of morphology and structure of CNWs can lead to higher ORR activity which is important for high performance of fuel cells.

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  • Plastic deforamation behaviours in dislocation free protein crystals

    Grant number:16K06708  2016.10 - 2019.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    KOJIMA Kenichi

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    Grant amount:\4810000 ( Direct Cost: \3700000 、 Indirect Cost:\1110000 )

    In order to utilize protein crystals as engineering materials, the fundamental mechanical properties of protein crystals were studied. In general, the protein crystals are brittle. To investigate plastic deformation in protein crystals, the stress-induced dislocations in glucose isomerase (GI) crystals without dislocations are investigated by synchrotron X-ray topography. The stress is applied by simple indentation method. The clear dislocation images are observed after the indentation. Dislocations are nucleated from the indentation area and then they propagate to the inside. We confirmed that plastic deformation in protein crystals is controlled by dislocation motion and multiplication. Moreover, the observation of dynamical diffraction in GI crystals is carried out. The oscillation profiles of GI crystals are in agreement with those predicted by dynamical theory of diffraction.

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  • Studies on plasticity and brittleness of protein crystals by using synchrotron digital X-ray topography

    Grant number:25420694  2013.4 - 2016.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    KOJIMA Kenichi, WAKO Kei, TACHIBANA Masaru, KOIZUMI Haruhiko

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    Grant amount:\5070000 ( Direct Cost: \3900000 、 Indirect Cost:\1170000 )

    Proteins are one of three main organic nutrients consisting of carbohydrates and fats and components in food that an organism uses to survive and grow. These proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. For example, the hen-egg white lysozyme is shown as one of typical proteins. These kinds of protein molecules could be crystalized as same as a table salt. In this research, we carried out fundamental experiments on mechanical properties of protein crystals such as hen-egg white lysozyme and glucose isomerase crystals. We found some important results as follows; ①the plastic deformation of protein crystals are controlled by the normal dislocation mechanisms. ②the strength of protein crystals could be improved by chemical binding and gel-method.

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  • Structure control of carbon nanowalls and its physical properties and applications

    Grant number:24560807  2012.4 - 2015.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    TACHIBANA MASARU

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    Grant amount:\5330000 ( Direct Cost: \4100000 、 Indirect Cost:\1230000 )

    Main three achievements in this work are as follows. (1) We found that the particle size of Pt supported on CNWs (Pt/CNW) depends on the domain size. In addition, it should be noted that the oxygen reduction reaction (ORR) activity of Pt/CNW is higher compared with that of commercial available T-Pt/CB even with smaller Pt particle size. (2) We found that transparent graphitic tiles are synthesized from CNWs by hock compression and rapid quenching. It is suggested that the transparent tile is a mixture of amorphous diamond and superhard graphitic material with the transparency. (3) We developed nitrogen-doped carbon alloy catalysts by dc plasma-enhanced chemical vapor deposition. The onset voltage exhibiting the ORR activity exceed 0.85 V which correspond to highest one in this field.

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  • A study on the generation of new carbon materials by piling up non-equilibrium conditions with defects

    Grant number:23560787  2011 - 2013

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    NIWASE Keisuke, ATOU Toshiyuki, NAGAI Yasuyoshi, SATOU Youhei, TACHIBANA Masaru

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    Grant amount:\4680000 ( Direct Cost: \3600000 、 Indirect Cost:\1080000 )

    Previously, we have discovered transformation from neutron-irradiated highly oriented pyrolytic graphite (HOPG) to amorphous diamond under shock compression. Here, we show the band gap energy of amorphous diamond is estimated to be 4 eV, which is similar to the value reported for the amorphous diamond synthesized from C60 fullerene by shock compression. In addition, we utilized HOPG foils irradiated with a neutron dose of about a half of the previous study, and found the transformation to the amorphous diamond. Also, we reported the synthesis of transparent graphitic tiles from carbon nanowalls by shock compression. It was suggested that the transparent tile is a mixture of amorphous diamond and superhard graphitic material.

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  • Assessment of crystal quality of protein crystals by using rocking curve imaging.

    Grant number:22560661  2010 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    KOJIMA Kenichi, WAKO Kei, TACHIBANA Masaru

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    Grant amount:\4940000 ( Direct Cost: \3800000 、 Indirect Cost:\1140000 )

    In the past, the main goal of protein crystallization was to explore the structure of protein molecules using X-ray. Recently, protein crystals have emerged as promising bio-nanoporous materials for different applications including highly selective bio-catalysis, bio-sensing and drug delivery. We identified the dislocation images in the identical protein crystals which are tetragonal hen-egg white lysozyme (HEWL) crystals not only by the conventional film method but the digital method using X-ray CCD camera systems. The simultaneous measurements of both methods were also carried out in the identical HEWL crystals. We evaluate the crystal perfection by mapping angular positions of maximum and the full width of half maximum (FWHM) for the local rocking curves. It is shown that the digital topography is more effective for assessment of crystal quality in protein crystals.

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  • Structural control and applications of carbon nanowalls

    Grant number:21560691  2009 - 2011

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    TACHIBANA Masaru

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    Grant amount:\4810000 ( Direct Cost: \3700000 、 Indirect Cost:\1110000 )

    We obtained main three results as mentioned below.
    (1) The growth process of CNWs was investigated. It was found that the preferred orientation of graphene layers constituting carbon nanowalls(CNWs) is perpendicular to the substrate surface. It should be noted that, before the vertical growth, the graphene layers are horizontally oriented. Furthermore, it was found that nanodiamond particles are formed over the substrate at the initial growth stage. Such understanding of the interface layers between the substrate and CNWs will be useful for not only the growth control but also device applications.
    (2) The physical and chemical properties such as transport properties and hydrogen absorption were investigated. It was found that CNWs exhibit Anderson weak localization which can be explained from domain structure of CNW. The hydrogen absorption properties at domain boundary and terrace of CNWs were characterized by quantum chemical calculation.
    (3) Platinum catalysts supported on carbon nanowalls(Pt/CNW) were prepared by a solution-reduction method. It was found that Pt nanoparticles with a mean diameter of 3.5 nm are well dispersed along domain boundaries in each CNW. In addition, it was shown that the Pt/CNW has high electrochemical active surface area and utilization, comparable to those for commercially available T? Pt/CB with good performance. Such high electrocatalytic activity could be attributed to the high electric conductivity of CNW and the improvement of electronic properties of Pt nanoparticles on the domain boundaries, in addition to the high dispersion of Pt particles.

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  • Characteristics of dislocations in protein crystals

    Grant number:18560648  2006 - 2007

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    KOJIMA Kenichi, TACHIBANA Maseru

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    Grant amount:\3750000 ( Direct Cost: \3600000 、 Indirect Cost:\150000 )

    The object of this research is to understand characteristics of dislocations in protein crystals. We have attacked the problems by means of two ways. One is to observe clear images of dislocations and to determine the Burgers vectors by synchrotron X-ray topography. The other is to estimate the elastic energy of dislocations and the mechanical strength by an ultrasonic pulse echo method and an indentation method.
    Crystal defects, especially dislocations, in hen egg-white lysozyme crystals that are a typical protein crystal that have - multiple polymorphisms, for example tetragonal, orthorhombic and monoclinic forms were investigated by means of synchrotron white and monoclinic-beam X-ray topography. The observed topographic images of dislocations were much clearer compared to those of any protein crystals that have been reported so far. It was demonstrated that millimeter-size crystals larger than extinction length for X-ray topographic reflections are required to obtain clear images, that is, direct images for protein crystals. In addition the weak beam technique was found to be useful for obtaining clear images. Straight, curved and loop-type dislocations were clearly resolved on the topographs. This shows that dislocations observed in common inorganic and organic with small molecules can also be introduced even in protein crystals. The shapes and distributions of dislocations strongly depended on the crystal polymorphisms. This suggests that the growth mechanisms in the different crystal forms studied could differ. Therefore, X -ray topography provides a useful tool for the characterization of protein crystal dislocations.
    We have succeeded the measurement of all components of elastic constants in hen egg-white lysozyme crystals using an ultrasonic pulse echo method. The measurements of the sound velocity were performed using (110) , (101) and (001) crystal surfaces. Consequently, all the six elastic constants of the dehydrated tetragonal HEW lysozyme crystals were determined to be C_<11>= C_<22>= 12.44 GPa, C_<12> =7.03 GPa, C_<13>= C_<28> =8.36 GPa, C_<88> =12.79 GPa, C_<44>=C_<55> =2.97 Gpa and C_<66>=2.63 Gpa, respectively.
    In addition, Mechanical properties of high quality tetragonal hen egg-white lysozyme single crystals, which are one of protein crystals were investigated by the indentation method. The indentation marks were clearly observed on the crystal surface and no elastic recovery of them occurred. The value of the micro-Vickers hardness in wet condition was estimated to be about 20 MPa at room temperature. The hardness greatly depended on the amount of water (intra-crystalline water) contained in the crystals. The hardness increased with increasing evaporation time to air at room temperature. It reached the maximum at about 260 MPa, which is 20 times as much as that in the wet condition. The origin of such a change in hardness was explained in terms of the dislocation mechanisms in lysozyme single crystals.

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  • Photo-illumination hardening of fullerene crystals

    Grant number:10650670  1998 - 1999

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    KOJIMA Kenichi, TACHIBANA Masaru

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    Grant amount:\3500000 ( Direct Cost: \3500000 )

    We carried out the experiments of Vickers micro-hardness of C60 and C70 crystals. As results, we have found that the micro-hardness of C60 and C70 crystals increased after they are illuminated with white light. We call this phenomenon "Photo-illumination hardening". The results are as following,
    1. The hardness increases with illumination of time, and then approaches a constant value.
    2. The hardening depends on the specimen temperature, and disappears at temperatures higher than 400K.
    3. The hardness strongly depends on the wavelength of illumination of light. The magnitude of the hardness reaches a maximum at 700nm.
    4. The Raman peaks of C60 crystals, which were illuminated as a function of illumination time, shift from an intrinsic peak 1469cmィイD1-1ィエD1 to a photo-polymerized peak 1460 cmィイD1-1ィエD1 via 1465 cmィイD1-1ィエD1 and 1464 cmィイD1-1ィエD1.
    5. In case of C70 crystals, we also observed the same kinds of behaviors due to photo-illumination. although the illumination time needs more longer.
    From these results, we conclude the hardening is due to the photo-induced polymers of C60 or C70.

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  • フラーレン結晶の金属化

    Grant number:08650773  1996

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    小島 謙一, 橘 勝, 野呂 純子

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    Grant amount:\2200000 ( Direct Cost: \2200000 )

    本年度の研究実績はおもにC_<60>結晶を金属化するために必要なC_<60>のポリ-マ化についての成果である。それはC_<60>シェルの研究とC_<60>結晶の光照射硬化の2点に集約される。
    (1)C_<60>シェルの研究:C_<60>結晶を酸素雰囲気中である温度以上で加熱すると、C_<60>結晶の表面層だけが残りそのほかは蒸発してしまうことがある。その表面層のことをシェルと呼んでいる。シェルの生成条件はいままでのところ不明であったが、われわれの研究の結果、可視光の照射下で大気中で580Cで再昇華させると生成することがわかった。また一度大気中で可視光のもとで照射したあと、動的に300Cで加熱しながら真空焼鈍するとシェルは形成されなかった。このことから、酸素と光がシェルの形成に重要な役割を果たすことがわかった。シェルの構造は透過電子顕微鏡、ラマン分光、などの研究からアモルファス炭素の構造が最も可能性があることがわかった。原子間力顕微鏡(AFM)観察によればこの膜厚は5nmであり、膜は比較的均一な構造をたもっていることが判明した。
    (2)C_<60>結晶の光照射硬化:C_<60>結晶に光照射するとポリマー化が起こることが知られている。C_<60>結晶が白色光で光照射すると微小硬さが異常に増加し400Kでその増加がなくなることが見いだされている。また、その波長依存性は赤色で最大になり赤色より波長の長い光に対しては影響のないことも見いだされた。ポリマー化の速度は紫外線の領域の方が大きいとされているが、われわれの結果は硬さの光照射硬化はC_<60>のポリマー化と光の浸透深さに依存することを示している。

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  • Comparison of dislocation behaviors between FCC metals and C60 crystals.

    Grant number:06650733  1994 - 1995

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for General Scientific Research (C)

    KOJIMA Kenichi, TACHIBANA Masaru

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    Grant amount:\2000000 ( Direct Cost: \2000000 )

    We investigated the characteristics of dislocations of C60 and C70 crystals.
    (1)Crystal growth and perfection.
    C60 and C70 crystals were grown from vapor method. The grown-in dislocation density was the order of 10^<3-4> cm^<-2> in C60 crystals. Slip dislocations were introduced from the edges of the crystal. The Burgers vectors of those dislocations were determined as b=1/ [110] by using X-ray topographs.
    (2) Slip systems in C60 crystals.
    Slip systems were observed to be a {111} <110> using an etch-pit method in the temperature range than 240K to 450K.This slip system was the same as that of FCC metals.
    (3) Interaction between dislocations and light.
    The temperature dependence of micro-hardness showed the anomalous behavior, that was that the hardness had a maximum at 400K.We explained that this was due to photo-induced products which were produced by light.
    (4) conclusion
    Slip systems were strongly depended on the crystal structures. However, physical properties of dislocations were due to characteristics of the molecules and the bondings.

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  • C60およびC70大型単結晶の育成とその完全性の評価

    Grant number:06750682  1994

    日本学術振興会  科学研究費助成事業  奨励研究(A)

    橘 勝

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    Grant amount:\900000 ( Direct Cost: \900000 )

    フラーレン大量合成法の発展は、フラーレン結晶に対する物性研究者の関心を高めた。これまでに多くの物性研究が行われている。しかし、これらの物性値は結晶性に大きく左右される。したがって、大型結晶の育成と同時に成長結晶の完全性の評価は、フラーレン結晶の真性の物性を知る上で重要となる。本研究では大型で良質のC60およびC70単結晶を育成し、それらの結晶の完全性を評価することを目的とした。
    C60原料粉末を十分に昇華精製し、結果として成長したC60の微結晶を大型結晶を育成するための原料として使用した。成長方法は連続引き出し気相成長法を用いた。昇華温度570℃、成長温度530℃、連続引き出し速度10mm/日とした。この成長条件を日数保持することによって、4.5×3.0×1.5mm^3の結晶を育成できた。一方、C70に関しては、設定温度がC60に比べて高くなるが、同様な手順で結晶を育成した。
    成長結晶の完全性をX線トポグラフィとエッチング法によって評価した。X線トポグラフィは高エネルギー物理学研究所の放射光実験施設のBL-15Bで行った。このX線トポグラフは、結晶の端以外は完全性が高く、転位像が一本一本識別して観察できることを示した。結晶端の不完全な領域は、試料の不適当な取扱による歪みによるものであることがわかった。一方、エッチングは成長結晶をトルエンに1-5秒間浸すことによって行った。このエッチングによる完全性の評価結果はX線トポグラフィによる結果と良い一致を示した。つまり、結晶端以外は比較的完全性が高いことがわかった。さらに、エッチピットの数から結晶成長時に導入される転位の密度を求めた。結果としてC60結晶中の成長転位の密度は10^4/cm^2であることがわかった。
    このような本研究における結晶欠陥、特に転位密度の定量化は、今後のフラーレン結晶の種々の物性値を評価する上で重要な知見になると期待される。

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  • 有機金属結晶中の結晶欠陥の制御

    Grant number:05650623  1993 - 1994

    日本学術振興会  科学研究費助成事業  一般研究(C)

    小島 謙一, 橘 勝

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    Grant amount:\1400000 ( Direct Cost: \1400000 )

    有機結晶でアルカリ金属をドーピングすることにより超伝導性などの金属的性質を示すC_<60>結晶の結晶欠陥を制御するためにいくつかの実験を行ったので結果を以下にのべる。
    1.特に転位の特性を調べるためにマイクロビッカスにより硬さの温度依存性についての実験を行った。その結果以下のようなことが分かった。
    (1)硬さは260K付近の相転移に対応して飛びが生じた。すなわち、温度が低下するにつれて硬さは硬くなり、260K付近で急激な硬さの上昇が生じた。このことは相転移に伴う結晶構造の変化に由来するものと結論された。
    (2)温度が上昇するにつれて硬さは減少するが、室温以上になると硬さは増加し370K付近で最大となり、再び硬さは減少した。この硬さの異常はC_<60>結晶中の転位と不純物との相互作用の可能性が強い。その一つはC_<60>結晶は酸素に対して敏感であり、物性が酸素の影響を受けることが良く知られている。それゆえ、酸素による転位の固着がこの370Kで最大になり硬さが異常に増加したものと考えられる。もう一つの可能性はC_<60>以外の高次フラーレンが不純物として残りそれと転位との相互作用によるものである。これらの可能性を明らかにするためにさらに実験を行う必要がある。
    2.C_<60>結晶の成長転位を制御し、その完全性を評価するためにX線トポグラフによって転位の観察を行った。結果はまだ転位密度が多くここの転位は分解されていないが転位の集団は確認されるに到った。

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  • 合成金属中の結晶欠陥の研究

    Grant number:04650605  1992

    日本学術振興会  科学研究費助成事業  一般研究(C)

    小島 謙一, 橘 勝

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    Grant amount:\1800000 ( Direct Cost: \1800000 )

    金属と同じような性質をもつ合成有機金属結晶の研究は近年、超伝導や非線形光学の分野で重要な発見があった。特に、C_<60>の結晶にKをドープすると超伝導が発現することが判った。しかしながら、C_<60>の結晶はたとえばベンゼンやCS_2溶液から結晶成長させると溶媒の巻き込みから高品質の結晶が得ずらい。それゆえに、気相成長法の方がのぞましいが大きな結晶の育成が難しくなる。また、結晶の品質の評価の方法が確立されていないのが現状である。そこで、本研究は高い品質のバルクC_<60>結晶を育成する方法と結晶の完全性の評価を確立することを目的としている。
    1結晶の育成
    C_<60>結晶は高温部約560Cで低温部約400Cの勾配を持った炉にC_<60>の粉末(都立大学理学部阿知波先生から提供された)を真空封入したガラス管を高温部に置き、低温部で結晶成長させた。一回の結晶成長では0.5mmから1mmまでのC_<60>結晶を得た。そこで、さらに、大きく結晶成長したC_<60>結晶を集めさらに同じ操作を繰り返した。その結果2回目に成長した結晶は最大1.5mmの大きさと(111)を癖壁面を持つC_<60>結晶を得た。この方法は大変効果的なのでさらに繰り返し行いさらに大きなC_<60>結晶を育成したい。
    2結晶の評価
    これまでC_<60>結晶の結晶性の評価はほとんどなされていなかった。そこで、X線トポグラフによって結晶の評価を試みた。気相成長によって得られた最大の結晶をそのまま(111)を反射面としてX線トポグラフを試みた。得られたX線トポグラフ像は転位の分解された像は得られず、全体として歪みの入った像になった。このことは気相成長によって得られた結晶の完全性はあまり良くないことが判った。これは、試料の処理が不十分であり、適当な薄さと平行度を出すことによって解決されるものと考えられる。
    3今後の計画
    完全性の高いC_<60>結晶の育成とその評価の確立、微小硬度計による硬度の温度に対する依存性を調べ強度に関する知見を得たい。さらに、完全性の高いC_<60>結晶にアルカリ金属をドープし超伝導状態と欠陥の関連性を研究したい。

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  • 応力下での有機化分子結晶中の転位の動的挙動に関する研究

    Grant number:04750611  1992

    日本学術振興会  科学研究費助成事業  奨励研究(A)

    橘 勝

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    Grant amount:\900000 ( Direct Cost: \900000 )

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  • フラーレン結晶の育成とそれらの力学物性

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    Grant type:Competitive

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  • Growth of fullerene crystals and their mechanical properties

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    Grant type:Competitive

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  • Synthesis of carbon nanotubes and their physical properties

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    Grant type:Competitive

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  • Growth of protein crystals and their mechanical properties

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    Grant type:Competitive

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  • カーボン・ナノチューブの生成とそれらの物理的性質

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    Grant type:Competitive

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  • タンパク質結晶の育成とそれらの力学物性

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    Grant type:Competitive

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