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Electroosmotic Injection and Chemical Kinetics in Micro Reactors

[+] Author Affiliations
Kaushik Arumbuliyur Comandur, Ali Asgar S. Bhagat, Subhashish Dasgupta, Ian Papautsky, Rupak K. Banerjee

University of Cincinnati, Cincinnati, OH

Paper No. SBC2008-193050, pp. 603-604; 2 pages
doi:10.1115/SBC2008-193050
From:
  • ASME 2008 Summer Bioengineering Conference
  • ASME 2008 Summer Bioengineering Conference, Parts A and B
  • Marco Island, Florida, USA, June 25–29, 2008
  • Conference Sponsors: Bioengineering Division
  • ISBN: 978-0-7918-4321-5
  • Copyright © 2008 by ASME

abstract

The study of fluid flow in microchannels is of significant interest due to its application in a wide area of fields ranging from microscale flow injection, cooling of microchips, fuel vaporizer and micro reactors for chemical and biological systems. Design of effective electrokinetic micro reactors requires in-depth understanding of the electrokinetic phenomena and bulk reactions of species in the micro reactor. Although electrokinetic flows are popularly used for applications in the field of capillary electrophoresis (CE) [1], the phenomena of electroosmosis can be conveniently used for bulk transport and mixing of reagents. Electroosmosis occurs when the electrical double layer (EDL) near a solid-liquid interface is created by an external electric field. The uniqueness of electroosmotic flow (EOF) is characterized by plug velocity profile having uniform flow. Devasenathipathy et al. [2] showed that EOF offers a number of significant advantages over conventional pressure driven flow like reduced sample diffusion and controlled sample movement.

Copyright © 2008 by ASME

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