Development of new analytical methods of microparticles and interfaces by using magnetic field

2014 Fiscal Year Final Research Report

• Project/Area Number: 21245022
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Analytical chemistry
• Research Institution: Osaka University
• Principal Investigator: WATARAI Hitoshi 大阪大学, 学内共同利用施設等, 招へい教授 (30091771)
• Co-Investigator(Kenkyū-buntansha): SUWA Masayori 大阪大学, 大学院理学研究科, 助教 (90403097)
• Project Period (FY): 2009-04-01 – 2015-03-31
• Keywords: 界面 / 微粒子 / 磁気泳動 / 磁気光学効果 / キラリティー / ファラデー効果 / ポルフィリン

Outline of Final Research Achievements

Novel analytical methods of interfaces and microparticles were developed.
1. By using magnetic force to the particle or droplet, zero-velocity magnetophoresis, Brownian motion magnetophoresis, two-dimensional flow magnetophoresis, and liquid-liquid interfacial magnetic susceptibility determination method were invented. 2. Magnetic pulling force was employed to measure the chemical bonding strength, the cell-protein interaction force, and the chemical equilibrium shift detected by the surface enhanced Raman scattering. 3. As the detection methods of chirality of molecules, the liquid-liquid interfacial internal reflection circular dichroic method and the chiral recognition method with porphyrin aggregates in microemulsion and in liquid interfaces were developed. 4. Novel analytical methods by using magneto-optical effect were developed; the liquid-liquid interfacial total internal reflection magneto-optical method and Faraday rotation imaging method by using pulsed magnetic field.

Free Research Field

分析化学