title: Migration analysis of micro-particles in liquids using microscopically designed external fields.
abstract: The recent development of new migration methods of micro-particles in liquids using various external fields is reviewed. The combination of a laser scattering force and a photothermal effect produced photothermal-conversion laser-photophoresis. A dielectric field generated in a planer or a capillary quadrupole electrode realized dielectrophoresis. Using a micrometer-scaled magnetic field gradient, the "Magnetophoretic velocimetry" of micro-particles was invented. Furthermore, the Lorentz force generated by combining an electric field and a magnetic field was utilized for electromagnetophoresis. These new methods were overlooked and the advantages in analytical use were discussed.
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Watarai
authors.forename: Hideaki
authors.initials: H
authors.lastname: Monjushiro
authors.forename: Satoshi
authors.initials: S
authors.lastname: Tsukahara
authors.forename: Masayori
authors.initials: M
authors.lastname: Suwa
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Iiguni