DESIGN OF SUPER-EFFICIENT MIXER BASED ON INDUCED CHARGE ELECTROOSMOTIC

Abstract

The super-efficient sample mixing induced by the induced-charge electrokinetic low around conducting/Janus cylinder was numerically studied in a confined U-shaped microchannel with suddenly applied DC weak electric filed. It's found hat there are four large circulations around the conducting cylinder and two maller circulations around the Janus cylinder. The results show that samples an still be well mixed with high flux due to the induced electroosmosis. It is emonstrated that the local flow circulations provide effective means to enhance he flow mixing between different solutions. The dependence of the degree of mixing nhancement on the electric field is also predicted.

Keywords

Dates

  • Submission Date2012-08-01
  • Revision Date2012-09-06
  • Acceptance Date2012-09-13

DOI Reference

10.2298/TSCI1205534Z

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