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DC dielectrophoretic focusing of particles in a serpentine microchannel |
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| Authors: | Junjie Zhu Tzuen-Rong J Tzeng Guoqing Hu Xiangchun Xuan |
| Affiliation: | (1) Department of Mechanical Engineering, Clemson University, Clemson, SC 29634-0921, USA;(2) Department of Biological Sciences, Clemson University, Clemson, SC 29634-0314, USA;(3) LNM, Institute of Mechanics, Chinese Academy of Sciences, 100190 Beijing, China; |
| Abstract: | 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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