Toshio Yamaguchi received BSc at Nagoya Institute of Technology in 1973 and PhD at Tokyo Institute of Technology in 1978. He was Research Associate at Tokyo Institute of Technology during 1978-1979. He was a Postdoc at Gothenburg University, Sweden, during 1979-1982. He was Assistant Professor at Tokyo Institute of Technology during 1982-1986. Then, he was Associate Professor at Fukuoka University in 1986, Full Professor in 1994, Dean of Faculty of Science, during 2013-2017. He retired Fukuoka University in 2020 and became Professor Emeritus and Research Appointed Professor. He was a guest researcher at Max-Planck Institute at Mainz in 1985, Guest Associate Professor of Institute of Molecular Science during 1989-1991, Guest Professor at Gothenburg University in 1989, Guest Professor at University College of London and Bristol University in 2001, and Visiting Professor during 2019-2022 and from 2022 Professor at Qinghai Institute of Salt Lakes, Chinese Academy of Sciences.

 His research focuses on the structure and dynamics of liquids and solutions by X-ray and neutron scattering and X-ray absorption spectroscopy. He has developed X-ray and neutron scattering equipment to measure the static structure and dynamics of solutions over a wide range of concentration, temperature, and pressure. His research topics have been metal ions and complexes in solution, aqueous organic solvents, supercritical fluids, liquids in interfacial and confined geometry, denaturation of proteins. His current research interest is the structure determination of water and aqueous solutions in the gigapascal pressure range and a single liquid droplet levitated in the air.

 Hamon President Choice Award, 2020, Nov. the Japanese Society for Neutron Science

 1.        Guangguo Wang, Yongquan Zhou, Toshio Yamaguchi, Hongyan Liu, Fayan Zhu, Zhijian Wu, Structure of Aqueous CaCl₂ Solutions by X-ray Scattering and Density Functional Theory, Russian Journal of Physical Chemistry A, 96(S1), S68–S76, 2022 

2.        Toshio Yamaguchi,* Sota Higa, Koji Yoshida, Kazushi Sumitani, Tsutomu Kurisaki, Structure of Aqueous Scandium(III) Nitrate Solution by Large-Angle X-ray Scattering Combined with Empirical Potential Refinement Modeling, X-ray Absorption Fine Structure, and Discrete Variational Xα Calculations, Bulletin of the Chemical Society of Japan, 95(4), 673–679, 2022   

3.        Jun Shirai, Koji Yoshida, Hiroki Koreeda, Takehiko Kitamori, Toshio Yamaguchi, Kazuma Mawatari, Water structure in 100 nm nanochannels revealed by nano X-ray diffractometry and Raman spectroscopy, Journal of Molecular Liquids, 350, 118567–118567,2022 

4.        W.Q. Zhang, T. Yamaguchi*, C.H. Fang, K. Yoshida, Y.Q. Zhou, F.Y Zhu, S. Machida, T. Hattori, W. Li, ,Structure of an aqueous RbCl solution in the gigapascal pressure range by neutron diffraction combined with empirical potential structure refinement modeling, Journal of Molecular Liquids, 348, 118080–118080, 2022  

5.        Toshio YAMAGUCHI,* Nami FUKUYAMA, Koji YOSHIDA, Yoshinori KATAYAMA, Ion Solvation and Association and Water Structure in an Aqueous Cerium(III) Chloride Solution in the Gigapascal Pressure Range, Analytical Sciences, 38, 409–417, 2022  

6.        Shinya Hosokawa, Takashi Kamiyama, Koji Yoshida, Toshio Yamaguchi, Satoshi Tsutsui, Alfred Q.R. Baron, Collective dynamics of liquid acetone investigated by inelastic X-ray scattering, Journal of Molecular Liquids, 332, 115825–115825, Mar, 2021   

7.        Toshio Yamaguchi,* Nami Fukuyama, Koji Yoshida, Yoshinori Katayama, Ion Solvation and Water Structure in an Aqueous Sodium Chloride Solution in the Gigapascal Pressure Range, The Journal of Physical Chemistry Letters, 12, 250–256, 2021 

8.        K. Yoshida, T. Yamaguchi,* D. T. Bowron, J. L. Finney, The structure of aqueous solutions of hexafluoro-iso-propanol studied by neutron diffraction with hydrogen/deuterium isotope substitution and empirical potential structure refinement modeling, Physical Chemistry Chemical Physics, 23, 13561–13573, 2021   

9.        Fayan Zhu, Toshio Yamaguchi, Koji Yoshida, Wenqian Zhang, Hongyan Liu, Yongquan Zhou, Chunhui Fang, Ion hydration and association in aqueous potassium tetrahydroxyborate solutions, The Analyst, 145, 2245–2255, 2020  

10.    Ryo Sakamoto, Maho Yamashita, Kosuke Nakamoto, Yongquan Zhou, Nobuko Yoshimoto, Kenta Fujii, Toshio Yamaguchi, Ayuko Kitajou, Shigeto Okada, Local structure of a highly concentrated NaClO₄ aqueous solution-type electrolyte for sodium ion batteries, Physical Chemistry Chemical Physics, 22, 26452–26458, 2020  

11.    Toshio Yamaguchi,* Structure of water under high pressure, Fukuoka University Science Reports, 50, 78–91, 2020   

12.    Yongquan Zhou, Toshio Yamaguchi, Kazutaka Ikeda, Koji Yoshida, Toshiya Otomo, Chunhui Fang, Wenqian Zhang, Fayan Zhu, Dihydrogen Bonds in Aqueous NaBD₄ Solution by Neutron and X-Ray Diffraction, J. Phys. Chem. Lett., 11, 1622–1628, 2020  

13.    Y. Zhou, T. Yamaguchi, W. Zhang, K. Ikeda, K. Yoshida, F. Zhu, H. Liu, The structural elucidation of aqueous H₃BO₃ solutions by DFT and neutron scattering studies, Phys. Chem. Chem. Phys., 22, 17160–17170, 2020 

14.    Y. Zhou, T. Yamaguchi, K. Ikeda, C. Fang, K. Yoshida, W. Zhang, F. Zhu, H. Liu, G Wang, Structure of liquid water studied by neutron and x-ray scattering; temperature effects, Chemical Report, 83, 434–441, 2020  

15.    T. Yamaguchi,* M. Nishino, K. Yoshida, M. Takumi, K. Nagata, T. Hattori, Ion Hydration and Association in an Aqueous Calcium Chloride Solution in the GPa range, Eur. J. Inorg. Chem., 1170–1177, 2019 

16.    K. Yoshida, H. Uchiyama, T. Yamaguchi, Structure and dynamical properties of hydrated F-actin investigated by X-ray scattering, Journal of Molecular Liquids, 291, 111265, 2019 

17.    Koji Yoshida, Toshio Yamaguchi, Generalized Langevin analysis of inelastic X-ray scattering for copper/ethylene glycol nanofluid, Chemical Physics Letters, 718, 74–79, 2019   

18.    Y. Zhou, T. Yamaguchi, K. Yoshida, C.H. Fang, Y. Fang, F. Zhu, Structure of alkaline aqueous NaBH4 solutions by x-ray scattering and empirical potential structure refinement , J. Mol. Liq., 274, 173–182, 2019  

19.    Kanae Ito, Antonio Faraone, Madhusudan Tyagi, Toshio Yamaguchi, Sow-Hsin Chen, Nanoscale dynamics of water confined in ordered mesoporous carbon , Physical Chemistry Chemical Physics, 21, 8517–8528, 2019  

20.    Koji Yoshida, Toshio Yamaguchi, Structure and dynamics of water observed over a wide energy range, Hamon, 29, 86–90, 2019 

21.    Koji Yoshida, Shigeru Ishida, Toshio Yamaguchi*, Hydrogen bonding and clusters in supercritical methanol-water mixture by neutron diffraction with H/D substitution combined with empirical potential structure refinement modeling, Mol. Phys., 117, 3297–3310, 2019 

22.    Ryo Sakamoto, Kosuke Nakamoto, Ayuko Kitajo, Hiroki Murakami, Haruka Hirai, Satoshi Takanak, Yongquan Zhou, Toshio Yamaguchi, Higeto Okada, Concentrated aqueous electrolyte aimed at establishing high-voltage aqueous batteries, Electrochemistry, 87, 220–226 2019 

23.    K. Yoshida, T. Zenin, A. Fujiyoshi, Y. Sanada, T. Yamaguchi, K. Murata, S. Tanaka, K. Hiroi, T. Takekiyo, Y. Yoshimura, 293The effect of alkyl ammonium ionic liquids on thermal denaturation aggregation of β-lactoglobulin,. J. Mol. Liquids, 293, 111477, 2019  

24.    Tsuyoshi Yamaguchi, Ryuya Ando, Koji Yoshida, Toshio Yamaguchi, Hiroshi Machida, Shear Viscosity and Heterogeneous Structure of Alkylaminoethanol-Based CO2 Absorbents, Journal of Physical Chemistry B, 122, 4045–4050, 2018  

25.    Yongquan Zhou, Yoshie Soga, Toshio Yamaguchi, Yan Fang, Chunhui Fang, Structure of aqueous RbCl and CsCl solutions using X-ray scattering and empirical potential structure refinement modelling, Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica, 34, 483–491, 2018   

26.    Kazuma Mawatari, Hiroki Koreeda, Koji Ohara, Shinji Kohara, Koji Yoshida, Toshio Yamaguchi, Takehiko Kitamori, Nano X-ray diffractometry device for nanofluidics, Lab on a Chip, 18, 1259–1264, 2018   

27.    Tsuyoshi Yamaguchi, Makina Saito, Koji Yoshida, Toshio Yamaguchi, Yoshitaka Yoda, Makoto Seto, Structural Relaxation and Viscoelasticity of a Higher Alcohol with Mesoscopic Structure, J. Phys. Chem. Lett., 9, 298–301, 2018  

28.    K. Yoshida, T. Inoue, M. Torigoe, T. Yamada, K. Shibata, T. Yamaguchi*, Structure analysis of electrolyte solultion with X-rays and neutrons under high temperatures and high pressures (in Japanese), Rev. High Pres. Sci. Tech., 28, 72–80, 2018  

29.    K. Yoshida, T. Inoue, M. Torigoe, T. Yamada, K. Shibata, T. Yamaguchi, Thermal behavior, structure, dynamic properties of aqueous glycine solutions confined in mesoporous silica MCM-41 investigated by X-ray diffraction and quasi-elastic neutron scattering, J. Chem. Phys. 149, 124502 2018   

30.    Kazuhisa Yano, Koji Yoshida, Kazuya Kamazawa, Hiroshi Uchiyama, Satoshi Tsutsui, Alfred Q. R. Baron, Yoshiaki Fukushima, Toshio Yamaguchi, Investigation of collective dynamics of solvent molecules in nanofluids by inelastic x-ray scattering, Journal of Molecular Liquids, 248, 468–472,  2017 

31.    Yongquan Zhou, Koji Yoshida, Toshio Yamaguchi, Hongyan Liu, Chunhui Fang, Yan Fang,Microhydration of BH4-: Dihydrogen Bonds, Structure, Stability, and Raman Spectra, Journal of Physical Chemistry A, 121, 9146–9155, 2017  

32.    Yongquan Zhou, Souta Higa, Chunhui Fang, Yan Fang, Wenqian Zhang, Toshio Yamaguchi, B(OH)₄^- hydration and association in sodium metaborate solutions by X-ray diffraction and empirical potential structure refinement, Physical Chemistry Chemical Physics, 19, 27878-27887, 2017 

33.    Takahiro Takekiyo, Koji Yoshida, Yu Funahashi, Shunya Nagata, Hiroshi Abe, Toshio Yamaguchi, Yukihiro Yoshimura, Helix-forming ability of proteins in alkylammonium nitrate, Journal of Molecular Liquids, 243, 584-590, 2017 

34.    Tsuyoshi Yamaguchi, Koji Yoshida, Toshio Yamaguchi, Michihiro Nagao, Antonio Faraone, Shiro Seki, Decoupling between the Temperature-Dependent Structural Relaxation and Shear Viscosity of Concentrated Lithium Electrolyte, Journal of Physical Chemistry B, 121, 8767-8773, 2017   

35.    Koji Yoshida, Nami Fukuyama, Toshio Yamaguchi, Shinya Hosokawa, Hiroshi Uchiyama, Satoshi Tsutsui, Alfred Q. R. Baron, Inelastic X-ray scattering on liquid benzene analyzed using a generalized Langevin equation, Chemical Physics Letters, 680, 1–5, 2017   

36.    Tsuyoshi Yamaguchi, Koji Yoshida, Toshio Yamaguchi, Yasuo Kameda, Kazutaka Ikeda, Toshiya Otomo, Analysis of Prepeak Structure of Concentrated Organic Lithium Electrolyte by Means of Neutron Diffraction with Isotopic Substitution and Molecular Dynamics Simulation, Journal of Physical Chemistry B, 121, 5355-5362, 2017 

37.    Shigeharu Kittaka, Koji Yoshida, Toshio Yamaguchi, M. -C. Bellissent Funel, Peter Fouquet, A neutron spin echo study of low-temperature water confined in the spherical silica pores of SBA-16, Physical Chemistry Chemical Physics, 19,10502-10510, 2017 

He has authored/coauthored 287 scientific publications on International Journals with over 7000 citations and an h-index of 45. He received the Award of the Japanese Society for Neutron Science in 2016 and the Award of the Japan Society for Analytical Chemistry in 2013. 

1.      Chairman of the Steering Committee of International Conference of Solution Chemistry 

2.      Editor-in-Chief of the Journal of Molecular Liquids (Elsevier) 

3.      Editorial board member of Liquids (MDPI) 

4.      Chairman of the J-PARC User Council 

2.      A study of microscopic structure of aerosol liquid droplet by laser trapping method, Fukuoka University Graduate School Priority Funds, Apr. 2017-Mar. 2018, 4060,000 JYN. 

3.      Development of X-ray diffraction of aerosol liquid droplets combined with a laser trapping method, Grant-in-Aid for Scientific Research (B) (No. 26288073), Japan Society for the Promotion of Science, Apr, 2014 - Mar, 2017, 6,700,000 JYN.