Abstract
This paper presents a preliminary evaluation of an electrokinetic process for the buffer transfer and stacking of charged colloidal particles in solution. The mechanism exploits the effects of particle stacking across streamlines in a flow with electrical conductivity gradients transverse to the flow direction. Particle velocity fields and particle concentration measurements in a T-shaped microchannel system are presented. Upon application of an electric field, negatively charged particles are extracted from a low conductivity stream and stacked into a high conductivity stream. A simplified numerical model of the process with a commercial software code captures the generation of a transverse electric field.
| Original language | English |
|---|---|
| Pages (from-to) | 629-634 |
| Number of pages | 6 |
| Journal | American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED |
| Volume | 259 |
| DOIs | |
| Publication status | Published - 2003 |
| Event | 2003 ASME International Mechanical Engineering Congress - Washington, DC., United States Duration: 2003 Nov 15 → 2003 Nov 21 |
ASJC Scopus subject areas
- General Engineering
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