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Researcher Information

last modified:2017/05/23

Assistant Professor OHASHI Ryutaro

Mail Laboratory Website

Faculty, Affiliation

Faculty of Chemistry, Institute of Science and Engineering
assistant professor

College and School Educational Field

Division of Material Chemistry, Graduate School of Natural Science and Technology
Division of Material Sciences, Graduate School of Natural Science and Technology

Laboratory

Department of Chemistry, Kanazawa University, Theoretical Chemistry TEL:076-264-5924 FAX:076-264-5742

Academic Background

【Academic background(Doctoral/Master's Degree)】
Kyoto University Doctor Department of Chemistry 200701 Completed
Kyoto University Master Department of Chemistry 200303 Completed
【Academic background(Bachelor's Degree)】
Kyoto University Science school 200103
【Degree】
Ph. D

Career

Posdoc(2007/02/01-2007/03/31)
Posdoc Washington University at St. Louis Posdoc(2007/04/25-2008/03/24)
Posdoc at NIMS(2008/04/01-2009/03/31)
Assistant professor Department of Chemistry(2009/04/01-)

Year & Month of Birth

1976/04

Academic Society



The Chemical Society of Japan
The Society of Polymer Science, Japan

Award

○young poster prize(2002/11/07)

Specialities

Physical Chemistry

Speciality Keywords

Solid-state NMR, Analysis of structure, Analysis of dynamics

Research Themes

Nuclear magnetic resonance studies to analyze structure and dynamics of molecules in solids

The nuclear magnetic resonance method is quite effective for analyzing local molecular structure and dynamics. The present study is designed to develop a measurement for solid-state nuclear magnetic resonance (NMR) and a simulation program for NMR spectrum, and analyze various molecular structures and dynamics.

Books

Papers

  •  Observation of 47,49Ti NMR Spectra of TiCl4/MgCl2 Catalysts under an Ultra-high Magnetic Field  Ryutaro Ohashi, Masayoshi Saito, Takashi Fujita, Toshihito Nakai, Hiroaki Utsumi, Kenzo Deguchi, Masataka Tansho, Tadashi Shimizu CHEMISTRY LETTERS 41 12 1563-1565 2012/11
  •  Molecular Dynamics of Octyl Urea Crystals Analyzed by Solid-State NMR Ryutaro Ohashi, Gou Wakabayashi, Motohiro Mizuno, Takahiro Soeta, Masao Hashimoto, Kimiaki Yamamura CHEMISTRY LETTERS 41 11 1433-1435 2012/11
  •  Solid-State NMR Investigations of the Unusual Effects Resulting from the Nanoconfinement of Water within Amphiphilic Crosslinked Polymer Networks Ryutaro Ohashi, Jeremy W. Bartels, Jinqi Xu, Karen L. Wooley, Jacob Schaefer ADVANCED FUNCTIONAL MATERIALS 19 21 3404-3410 2009/09
  •  Cross polarization via the non-Zeeman spin reservoirs under MAS Ryutaro Ohashi, K. Takegoshi, Takehiko Terao SOLID STATE NUCLEAR MAGNETIC RESONANCE 31 2  115 2007/03
  •  Asymmetric 13C-13C polarization transfer under dipolar-assisted rotational resonance in magic-angle spinning NMR Ryutaro Ohashi, K. Takegoshi JOURNAL OF CHEMICAL PHYSICS 125  214503 2006/12

show all

  •  Identification of Physiological and Toxic Conformations in Ab42 Aggregates Yuichi Masuda, Satoko Uemura, Ryutaro Ohashi, Azusa Nakanishi, K. Takegoshi, Takahiko Shimizu, Takuji Shirasawa, Kazuhiro Irie CHEMBIOCHEM 10 2 287 2009/01
  •  Verification of the C-terminal intramolecular beta-sheet in Abeta42 aggregates using solid-state NMR: Implications for potent neurotoxicity through the formation of radicals. Yuichi Masuda, Satoko Uemura, Azusa Nakanishi, Ryutaro Ohashi, K Takegoshi, Takahiko Shimizu, Takuji Shirasawa, Kazuhiro Irie BIOORGANIC & MEDICINAL CHEMISTRY 18 11 3206 2008/06
  •  Verification of the intermolecular parallel beta-Sheet in E22K-Abeta42 aggregates by solid-state NMR using rotational resonance: Implications for the supramolecular arrangement of the toxic conformer of Abeta42. Yuichi Masuda, Azusa Nakanishi, Ryutaro Ohashi, K Takegoshi, Takahiko Shimizu, Takuji Shirasawa, Kazuhiro Irie BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 72 8 2170 2008/05
  •  The Toxic Conformation of the 42-residue Amyloid beta Peptide and Its Relevance to Oxidative Stress in Alzheimer's Disease. Kazuhiro. Irie, K. Murakami, Y. Masuda, A. Morimoto, H. Ohigashi, H. Hara, Ryutaro Ohashi, K. Takegoshi, H. Fukuda, M. Nagao, T. Shimizu, T. Shirasawa Mini-Review in Medicinal Chemistry 7 10 1001 2007/10
  •  Verification of the turn at positions 22 and 23 of the beta-amyloid fibrils with Italian mutation using solid-state NMR. Yuichi Masuda, Kazuhiro Irie, Kazuma Murakami, Hajime Ohigashi, Ryutaro Ohashi, K Takegoshi, Takahiko Shimizu, Takuji Shirasawa BIOORGANIC & MEDICINAL CHEMISTRY 13 24 6803 2005/12
  •  Structure of beta-amyloid fibrils and its relevance to their neurotoxicity: implications for the pathogenesis of Alzheimer's disease. Kazuhiro Irie, Kazuma Murakami, Yuichi Masuda, Akira Morimoto, Hajime Ohigashi, Ryutaro Ohashi, Kiyonori Takegoshi, Masaya Nagao, Takahiko Shimizu, Takuji Shirasawa JOURNAL OF BIOSCIENCE AND BIOENGINEERING 99 5 437 2005/06
  •  Hydration water dynamics in bovine serum albumin at low temperatures as studied by deuterium solid-state NMR T. Miyatou, T. Araya,R. Ohashi, T. Ida, M. Mizuno Journal of Molecular Structure 1121 80-85 2016
  •  An NMR study on the mechanisms of freezing and melting of water confined in spherically mesoporous silicas SBA-16 T. Miyatou, R. Ohashi, T. Ida, S. Kittaka, M. Mizuno Physical Chemistry Chemical Physics 18 18555-18562 2016
  •  Phase transition behavior of hydrogen bonded liquid crystal (6BA)2-(BPy)x as studied by 2H NMR M. Mizuno, K. Tabota, T. Oigawa, T. Miyatou, Y. Kumagai, R. Ohashi, T. Ida Hyperfine Interactions 237 135 2016
  •  2H and 13C NMR studies of orientational order and actual amount of n-heptane molecule in liquid crystal phases of the 7CB-n-heptane system Y. Kumagai, R. Ohashi, T. Ida, M. Mizuno Chemicsl Physics Letters 639 114-119 2015
  •  Solid-state 47/49Ti nuclear magnetic resonance of TiO2 Yamada, Kazuhiko; Saito, Masayoshi; Ohashi, Ryutaro; Nakai, Toshihito; Deguchi, Kenzo; Shimizu, Tadashi Chemistry Letters 43 9 1520-1521 2014/01/01 
  •  Local structure and dynamics of imidazole molecules in proton-conducting poly(vinylphosphonic acid)-imidazole composite material Mizuno, Motohiro; Iwasaki, Ayano; Umiyama, Tsuyoshi; Ohashi, Ryutaro; Ida, Tomonori Macromolecules 47 21 7469-7476 2014/11/11 
  •  Local structure and molecular motions in imidazolium hydrogen malonate crystal as studied by 2H and 13C NMR Mizuno, Motohiro; Chizuwa, M.; Umiyama, Tsuyoshi; Kumagai, Yoshihide; Miyatou, T.; Ohashi, Ryutaro; Ida, Tomonori; Tansho, Masataka; Shimizu, Tadashi Hyperfine Interactions 2014/10/30 
  •  Molecular orientation of hydrogen-bonded liquid crystal (6BA)2-(BPy)x as Studied by 2H NMR Mizuno, Motohiro; Higashima, Y.; Yamashita, A.; Ishida, Y.; Miyatou, T.; Kumagai, Yoshihide; Ohashi, Ryutaro; Ida, Tomonori Hyperfine Interactions 2014/10/30 

Conference Presentations

  • Effects of 3 spin flip-flop for exchange rate in 2D exchange NMR(conference:The 55th Annual Meeting of the NMR Society of japan)(2016/11/16)
  • 23Na solid-state NMR analysis of hydration water around sodium ions in cellulose nanocrystal films(conference:2nd International Symposium onCenter of Excellence for Innovative Material Sciences Based on Supramolecules)(2016/10/26)
  • Analysis of Cellulose Nanocrystal films using Sodium solid-state NMR(2016/10/20)

Arts and Fieldwork

Patent

Theme to the desired joint research

Grant-in-Aid for Scientific Research

○「固体NMRによる結晶化が困難なタンパク質のための構造解析法の開発」(2012-2013) 
○「非晶質試料の構造解析のための固体NMRによる炭素間距離決定法の開発」(2016-) 

Classes (Bachelors)

○Experiments in Basic Chemistry C(2017)
○Experiments in Basic Chemistry A(2017)
○Experiments in Basic Chemistry C(2016)
○Experiments in Basic Chemistry C(2010)
○Experiments in theoretical Chemistry(2009)

Classes (Graduate Schools)

○Seminar in Material Analysis(2017)
○Seminar in Material Analysis(2017)
○Seminar in Material Analysis(2016)
○Seminar in Material Analysis(2016)
○Seminar in Material Analysis(2012)
○Exercise(2011)
○Exercise(2010)
○Exercise(2009)

International Project

International Students

Lecture themes

Others (Social Activities)

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