Trace analysis based on the acoustic levitation of a single particle
| Project/Area Number |
25620107
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Analytical chemistry
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
Okada Tetsuo 東京工業大学, 理工学研究科, 教授 (20183030)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 超音波 / マイクロ粒子 / 表面反応 / 金ナノ粒子 / 粒子 / 凝集 / 金薄層 |
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| Outline of Final Research Achievements |
The particle levitation in an acoustic-gravity field depends on the density and compressibility of the particle, but is independent of the particle size. When Au nanoparticles are aggregated on the surface of a microparticle by an appropriate reaction, the acoustic properties of the microparticle should be changed. From the levitation coordinate, the extent of the reaction can be evaluated. This should allow the detection of trace compound in a solution by designing an appropriate reaction system. For Au-plated plastic beads, predicted results were obtained. However, the levitation coordinate for polystyrene (PS) particles was varied for individual particles. Although various functional groups can be introduced on the PS particles, this particle has proven inapplicable to the present study. We have succeeded in the preparation of microparticles, which have uniform acoustic properties. A protein was bonded on the particle in a simple way.
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Report
(4 results)
Research Products
(2 results)
