| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Outline of Final Research Achievements |
Mass transfer of a dye in the porous microparticle/solution system has been analyzed using microspectroscopic and microelectrochemical methods controlled in the micrometer-sized space. A single microparticle such as ODS silica gel was trapped by laser manipulation technique. The distribution rate of a dye from a solution into the single laser-trapped microparticle was measured by fluorescence recovery after quick photobleaching. Release of a dye from the laser-trapped microparticle into the solution was measured by fluorescence microspectroscopy after quick bulk electrolysis of the dye. The intraparticle diffusion was controlled by surface diffusion, not pore diffusion. Furthermore, the mass transfer was significantly influenced by desorption of the dye on the pore walls of the microparticle.
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