2015 Fiscal Year Final Research Report
Nonequilibrium effects of water molecules on biological phenomena
| Project/Area Number |
25400428
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Biological physics/Chemical physics/Soft matter physics
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| Research Institution | Niigata University (2015)
Kyushu University (2013-2014) |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
Akiyama Ryo 九州大学, 理学研究院, 准教授 (60363347)
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| Research Collaborator |
Hara Ryohei
Inoue Masao
Yamakita Tomofumi
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| 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 |
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| 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.
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| Free Research Field |
化学物理
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