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Nonequilibrium effects of water molecules on biological phenomena

Research Project

Project/Area Number 25400428
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biological physics/Chemical physics/Soft matter physics
Research InstitutionNiigata University (2015)
Kyushu University (2013-2014)

Principal Investigator

Yoshimori Akira  新潟大学, 自然科学系, 教授 (90260588)

Co-Investigator(Kenkyū-buntansha) Akiyama Ryo  九州大学, 理学研究院, 准教授 (60363347)
Research Collaborator Hara Ryohei  
Inoue Masao  
Yamakita Tomofumi  
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords化学物理 / 溶媒粒子の非平衡分布 / 動径分布関数 / 動的密度汎関数理論 / アインシュタインの粘度式 / 希薄溶液の粘度 / 溶媒粒子のエントロピー / シャペロニン / 溶媒粒子の非平衡分布の効果 / 溶質溶媒動径分布関数 / 溶質溶媒相互作用 / マイクロレオロジー
Outline of Final Research Achievements

1. Assuming the equilibrium distribution of solvent particles, we have developed a theoretical method for calculating dynamics of a solute particle, combining the Fokker-Planck equation with the potential of mean force. The method is applied to the entropic insertion system of a large spherical solute into a cylindrical vessel comprising biopolymers. It is found that the solute is inserted along the central axis of the vessel cavity and trapped at a position where the entropic potential takes a local minimum value. We calculate the trapping time.
2. We have applied a theoretical method for studying the solvent particle dynamics around the moving solute to the same system as that studied in 1.
3. We have developed a numerical method for calculating an axial-symmetric time dependent density functional theory. The method has been applied to microrheology. In addition, we have formulated a theory of viscosity in a dilute solution considering the solute-solvent interaction.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (17 results)

All 2016 2015 2014 2013

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Acknowledgement Compliant: 2 results) Presentation (7 results)

  • [Journal Article] Dynamics of the entropic insertion of a large sphere into a cylindrical vessel2016

    • Author(s)
      Ryohei Hara, Ken-ichi Amano, Masahiro Kinoshita, and Akira Yoshimori
    • Journal Title

      The Journal of Chemical Physics

      Volume: 144 Issue: 10 Pages: 105103-105103

    • DOI

      10.1063/1.4943394

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Theory of Solvation Effects on Viscosity2015

    • Author(s)
      Tomofumi Yamakita and Akira Yoshimori
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 84 Issue: 4 Pages: 043602-043602

    • DOI

      10.7566/jpsj.84.043602

    • NAID

      40020425827

    • Related Report
      2015 Annual Research Report 2014 Research-status Report
    • Peer Reviewed
  • [Journal Article] Theoretical Method of Calculating a Solvent Nonequilibrium Effect on Solute Movement2015

    • Author(s)
      Ryohei Hara and Akira Yoshimori
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 84 Issue: 12 Pages: 123601-123601

    • DOI

      10.7566/jpsj.84.123601

    • NAID

      40020678644

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Effects of interactions between particles on dynamics in microrheology2015

    • Author(s)
      Masao Inoue, Akira Yoshimori
    • Journal Title

      Journal of Molecular Liquids

      Volume: 200 Pages: 81-84

    • DOI

      10.1016/j.molliq.2014.05.029

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Effects of Solvation Structure on Diffusion of Large Particle in Binary Mixture Studied by Perturbation Theory2014

    • Author(s)
      Yuka Nakamura, Akira Yoshimori, and Ryo Akiyama
    • Journal Title

      Journal of Molecular Liquids

      Volume: 印刷中

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Control of solid-phase stability by interaction potential with two minima2014

    • Author(s)
      A. Suematsu, A. Yoshimori, M. Saiki, J. Matsui, T. Odagaki
    • Journal Title

      Journal of Molecular Liquids

      Volume: 印刷中

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Perturbation Theory of Large-Particle Diffusion in a Binary Solvent Mixture2014

    • Author(s)
      Yuka Nakamura, Akira Yoshimori, and Ryo Akiyama
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 印刷中

    • NAID

      40020091571

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] A Unified Proof of the Harada-Sasa equality for Underdamped and Overdamped Systems2014

    • Author(s)
      Kazuo Yamada and Akira Yoshimori
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 印刷中

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] A theoretical framework for calculations of the structural relaxation time on the basis of the free energy landscape theory2013

    • Author(s)
      Toru Ekimoto, Akira Yoshimori, Takashi Odagaki and Takashi Yoshidome
    • Journal Title

      Chemical Physics letters

      Volume: 577 Pages: 58-61

    • DOI

      10.1016/j.cplett.2013.05.051

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Coarse-grained forms for equations describing the microscopic motion of particles in a fluid2013

    • Author(s)
      Shankar P. Das1,* and Akira Yoshimori
    • Journal Title

      Phys. Rev. E

      Volume: 88 Issue: 4 Pages: 43008-43008

    • DOI

      10.1103/physreve.88.043008

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] マイクロレオロジーにおける粒子間相互作用と溶媒の効果2016

    • Author(s)
      井上雅郎, 吉森明
    • Organizer
      日本物理学会 第71回年次大会
    • Place of Presentation
      東北学院大学(宮城県仙台市)
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] 溶質が狭い空間に入るときの溶媒の動的効果~空間の大きさ依存性2015

    • Author(s)
      原諒平, 吉森明
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      関西大学(大阪府吹田市)
    • Year and Date
      2015-09-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] 不均一環境下で溶質が溶媒から受ける抵抗2015

    • Author(s)
      原諒平
    • Organizer
      第70回日本物理学会年次大会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Research-status Report
  • [Presentation] マイクロレオロジーにおけるプローブ粒子の速度と抵抗力の関係2015

    • Author(s)
      井上 雅郎
    • Organizer
      第70回日本物理学会年次大会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Research-status Report
  • [Presentation] Depletion effects on dynamics in microrheology2014

    • Author(s)
      Masao INOUE, Akira YOSHIMORI
    • Organizer
      Nagoya Symposium on Depletion Forces: Celebrating the 60th Anniversary of the Asakura-Oosawa Theory
    • Place of Presentation
      名古屋大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Depletion effects on viscosity of solution2014

    • Author(s)
      Tomofumi YAMAKITA, Akira YOSHIMORI
    • Organizer
      Nagoya Symposium on Depletion Forces: Celebrating the 60th Anniversary of the Asakura-Oosawa Theory
    • Place of Presentation
      名古屋大学
    • Related Report
      2013 Research-status Report
  • [Presentation] 溶媒の粒子性を考慮したときの溶液の粘性の理論2014

    • Author(s)
      山北知史、吉森明
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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