Journal
MICROFLUIDICS AND NANOFLUIDICS
Volume 7, Issue 6, Pages 751-756Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10404-009-0432-7
Keywords
Particle focusing; DC dielectrophoresis; Electrokinetic flow; Serpentine microchannel
Funding
- Clemson University
- Key Laboratory of Nonlinear Mechanics in China
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Focusing particles into a tight stream is usually a necessary step prior to separating and sorting them. We present herein a proof-of-concept experiment of a novel particle focusing technique in DC electrokinetic flow through a planar serpentine microchannel. This focusing stems from the cross-stream dielectrophoretic motion induced within the channel turns. The observed particle focusing behavior is consistent with the predicted particle trajectories from a numerical modeling.
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