title: Increasing the trapping efficiency of particles in microfluidic planar platforms by means of negative dielectrophoresis.
abstract: We present a novel planar electrode geometry in which particles (typically 10 microm in diameter) are focused near a defined surface before being trapped using negative dielectrophoresis. The focusing element can deflect particles having speeds up to hundreds of micrometers per second. This trapping configuration results in improved trapping yields and a decrease in overall reagent consumption. Particles are trapped dynamically while flowing in a microfluidic channel.
authors.affiliation: Department of Chemistry, Institute of Biomedical Engineering, and Chemical Biology Centre, Imperial College London, South Kensington, London, SW7 2AZ, United Kingdom.
authors.forename: Fabrice
authors.initials: F
authors.lastname: Gielen
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: deMello
authors.forename: Tony
authors.initials: T
authors.lastname: Cass
authors.forename: Joshua B
authors.initials: JB
authors.lastname: Edel
mesh_terms: D003198:Computer Simulation; D004586:Electrophoresis; D007477:Ions / Q000737:chemistry; D044085:Microfluidics; D013499:Surface Properties
chemical_list: D007477:Ions