2010 Fiscal Year Final Research Report
Study on spatio-temporal hierarchial structure in soft matter by three-dimensional microrheology
| Project/Area Number |
20340113
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biophysics/Chemical physics
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| Research Institution | Kyushu University |
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Principal Investigator |
KIMURA Yasuyuki 九州大学, 大学院・理学研究院, 教授教授 (00225070)
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| Co-Investigator(Kenkyū-buntansha) |
IWASHITA Yasutaka 九州大学, 大学院・理学研究院, 助教 (50552494)
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| Project Period (FY) |
2008 – 2010
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| Keywords | ソフトマター / 光ピンセット / マイクロレオロジー |
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| Research Abstract |
In this study, we developed a new technique that can be measured mesoscopic local interactions and mechanical properties in soft matter which has a complex internal structure with a resolution of meso-scale in three-dimension. We developed a two-beam optical tweezers which can scan a sample in three dimensions and a multi-beam optical tweezers which can trap particles at different positions in three-dimensions. Using these systems, we measured(1) a long-range interaction between particles in a liquid crystal,(1) mechanical response of a single vesicle,(3) mesoscipic linear and nonlinear viscosity in bilayer lamellar system,(4) collective motion in hydrodynamically coupled particles.
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