Electro osmotic shear flow in microchannels

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Abstract

We study electro osmotic shear flow in micro channels by chemically and electrically modifying the surface charge of the channel walls. For chemical modification one of the channel walls was treated with cationic polymer. For electric modification, we patterned gate electrodes on one of the channel walls. The applied shear stress is controlled either by the electro osmotic flow (EOF) driving field or by the gate voltage. Such a system can work as an in situ microrheometer for lab on a chip devices.
Original languageEnglish
Title of host publication14th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2010, MicroTAS 2010
EditorsSabeth Verpoorte, Helen Andersson-Svahn, Jenny Emnéus, Nicole Pamme
PublisherThe Chemical and Biological Microsystems Society
Pages1124-1126
Number of pages3
ISBN (Electronic)978-0-9798064-3-8
ISBN (Print)978-1-6183906-2-2
Publication statusPublished - 3 Oct 2010
Event14th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2010, µTAS 2010 - Groningen, Netherlands
Duration: 3 Oct 20107 Oct 2010
Conference number: 14

Publication series

NameInternational Conference on Miniaterized Systems for Chemistry and Life Sciences : [proceedings]
PublisherThe Chemical and Biological Microsystems Society
Volume2010
ISSN (Print)1556-5904

Conference

Conference14th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2010, µTAS 2010
Abbreviated titleMicroTAS
CountryNetherlands
CityGroningen
Period3/10/107/10/10

Keywords

  • Electro osmotic flow
  • Shear flow
  • Gate electrodes

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  • Cite this

    Mampallil, D., van den Ende, D., & Mugele, F. (2010). Electro osmotic shear flow in microchannels. In S. Verpoorte, H. Andersson-Svahn, J. Emnéus, & N. Pamme (Eds.), 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2010, MicroTAS 2010 (pp. 1124-1126). (International Conference on Miniaterized Systems for Chemistry and Life Sciences : [proceedings]; Vol. 2010). The Chemical and Biological Microsystems Society.