Wide channel dielectrophoresis-based particle exchanger with electrophoretic diffusion compensation.

Tornay, Raphaël; Braschler, Thomas; Renaud, Philippe · Lab Chip · 2009

basic_science · Level V

Where this comes from

Abstract

We present here a microfluidic device for the chemical modification of particles. In order to alleviate diffusive mixing issues beads are pushed from a starting buffer to a reagent over a wide channel by an array of shifted electrodes. We also show that the effect of reagent diffusion can be compensated by electrophoretic forces.