title: Manipulation of micro-particles by flexible polymer-based optically-induced dielectrophoretic devices.
abstract: This study presents a novel technology to manipulate micro-particles with the assistance from flexible polymer-based optically-induced dielectrophoretic (ODEP) devices. Bending the flexible ODEP devices downwards or upwards to create convex or concave curvatures, respectively, enables the more effective separation or collection of micro-particles with different diameters. The travel distances of the polystyrene beads of 40 μm diameter, as induced by the projected light in a given time period was increased by ~100%, which were 43.0 ± 5.0 and 84.6 ± 4.0 μm for flat and convex ODEP devices, respectively. A rapid separation or collection of micro-particles can be achieved with the assistance of gravity because the falling polystyrene beads followed the inclination of the downward and upward bent ODEP devices.
authors.affiliation: Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan.
authors.forename: Shu-Ju
authors.initials: SJ
authors.lastname: Lin
authors.forename: Shih-Hsun
authors.initials: SH
authors.lastname: Hung
authors.forename: Jun-Yuan
authors.initials: JY
authors.lastname: Jeng
authors.forename: Tzung-Fang
authors.initials: TF
authors.lastname: Guo
authors.forename: Gwo-Bin
authors.initials: GB
authors.lastname: Lee
mesh_terms: D004586:Electrophoresis / Q000379:methods*; D008027:Light; D008846:Micromanipulation / Q000379:methods*; D053758:Nanoparticles / Q000528:radiation effects*; D011108:Polymers / Q000737:chemistry* / Q000528:radiation effects*
chemical_list: D011108:Polymers