| Budget Amount *help |
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
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| Outline of Final Research Achievements |
In order to understand the structure and dynamics of soft matter complex fluids, it is necessary to obtain knowledge about their response at mesoscale. In this study, we have developed an AC active microrheology measurement system to study the local mechanical properties of soft matter. We measured the amplitude and phase lag of displacement of a micron-sized probe particle under AC external force applied by optical tweezers. We also developed a holographic microscope that enables simultaneous observation of three dimensional displacement of multiple particles from a hologram caused by interference between the incident and the scattered light when probe particles are irradiated with laser light. With this method, we succeeded in tracking of multiple self-propelled particles in three dimension.
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