2013 Fiscal Year Final Research Report
Development of 3D-microrheology microscope and its application to soft matter
| Project/Area Number |
23340123
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Biophysics/Chemical physics
|
|---|
| Research Institution | Kyushu University |
|---|
Principal Investigator |
KIMURA YASUYUKI 九州大学, 理学(系)研究科(研究院), 教授 (00225070)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
IWASHITA Yasutaka 九州大学, 大学院・理学研究院, 助教 (50552494)
|
|---|
| Project Period (FY) |
2011-04-01 – 2014-03-31
|
| Keywords | ソフトマターの物理 / レオロジー / 非平衡 / 光ピンセット |
|---|
| Research Abstract |
In this research, the probe particles with mesoscopic size dispersed in complex fluids of soft matter are trapped in three dimensions by the newly developed multi-beam laser tweezers. We developed the multi-beam three-dimensional microrheology system which is highly precise and can measure the response of the particles to the thermal fluctuation and a local interaction. By utilizing this system, we studied (1) the rhythmic collective motion in the system composed of hydrodynamically coupled particles, (2) the interaction between colloids dispersed in liquid crystal and (3) the melting of a finite-sized two-dimensional colloidal crystal, and succeeded in acquiring various new knowledge.
|
