Modeling the trajectory of Microparticles subjected to dielectrophoresis in a microfluidic device for field flow fractionation (original) (raw)

2015, Chemical Engineering Science

Trajectory of microparticles subjected to dielectrophoresis is modeled. Model accounts for forces due to inertia, gravity, buoyancy, virtual mass and dielectrophoresis. Steady state levitation of microparticle is dependent on voltage and electrode/gap length. Steady state levitation of microparticle is independent of microparticle radius, microchannel height and flow rate. Levitation, under transient conditions, is influenced by all operating and geometric parameters.

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