Issue 6, 2004

Electroosmotic mixing in microchannels

Abstract

Mixing is an essential, yet challenging, process step for many Lab on a Chip (LOC) applications. This paper presents a method of mixing for microfluidic devices that relies upon electroosmotic flow. In physical tests and in computer simulations, we periodically vary the electric field with time to mix two aqueous solutions. Good mixing is shown to occur when the electroosmotic flow at the two inlets pulse out of phase, the Strouhal number is on the order of 1, and the pulse volumes are on the order of the intersection volume.

Graphical abstract: Electroosmotic mixing in microchannels

Article information

Article type
Paper
Submitted
15 Jun 2004
Accepted
24 Sep 2004
First published
04 Nov 2004

Lab Chip, 2004,4, 558-562

Electroosmotic mixing in microchannels

I. Glasgow, J. Batton and N. Aubry, Lab Chip, 2004, 4, 558 DOI: 10.1039/B408875A

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