| Budget Amount *help |
¥50,310,000 (Direct Cost: ¥38,700,000、Indirect Cost: ¥11,610,000)
Fiscal Year 2013: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Fiscal Year 2012: ¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000)
Fiscal Year 2011: ¥24,440,000 (Direct Cost: ¥18,800,000、Indirect Cost: ¥5,640,000)
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| Research Abstract |
Novel techniques based on laser trapping - microspectroscopy on single micrometer-sized colloidal particles in solution as well as single aerosol water droplets in air have been developed. In particular, we have developed temperature- and moisture-controlled laser trapping of single aerosol water droplets in air. We also confirmed experimentally photoinduced aerosol droplet formation in air and its mechanistic aspects were elucidated. Furthermore, we succeeeded in determining the sizes of single aerosol droplets in a nanometer level based on whipering gallery mode resonances of Raman scattering light in single aerosol droplets. We also showed that the intraparticle diffusion of a cation dye in single cation-exchange resin microparticles was determined by the Donnan electric membrane potential generated at the resin/water interface, which was the first observation for single ion-exchange microparticles.
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