A complete design flow of dielectrophoretic chip

Abstract

Traditional methods of dielectrophoretic (DEP) separation using planar microelectrodes and recent research about vertical electrodes cannot improve both effectiveness and integration for industry. This paper describes the design and numerical simulation of microdevice using COMSOL, which can separate particles by lateral electrical fields uniformly along the vertical direction in the channel. Particles tracing is fully coupled to electric field and fluidic field, which is a complete design flow of DEP devices. Particle separation is demonstrated for continuous separation in a flowing mixture of 1 µm and 10 µm particles with 100% separation efficiency.