Electrokinetic interactions in microscale cross-slot flow

Yi Je Juang, Xin Hu, Shengnian Wang, L. James Lee, Chunmeng Lu, Jingjiao Guan

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

The effects of electroosmosis (EO) and electrophoresis (EP) interactions on the movement of highly charged polystyrene microspheres and lesser-charged liposome nanoparticles were studied, using a microscale cross-slot flow device with different charge density and polarity on the channel surfaces. When the particle EP mobility is greater than the channel surface EO mobility, the flow pattern would be either extensional or extension dominated mixed-shear. The rotation flow only exists when the EO mobility dominates. The surface charge density of top and bottom lids of microchannels plays an important role in microfluidics. Experimental observations agreed fairly well with calculated flow patterns.

原文English
文章編號244105
頁(從 - 到)1-3
頁數3
期刊Applied Physics Letters
87
發行號24
DOIs
出版狀態Published - 2005

All Science Journal Classification (ASJC) codes

  • 物理與天文學(雜項)

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