AC field effect flow control of EOF in complex microfluidic systems with integrated electrodes


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Wouden, E.J. van der and Pennathur, S. and Berg, A. van den (2008) AC field effect flow control of EOF in complex microfluidic systems with integrated electrodes. In: 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, 12-16 Oct 2008, San Diego, California (pp. pp. 721-723).

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Abstract:In this work, we demonstrate that positive net flow can be induced and controlled with relatively low potential due to the parallel alignment of the integrated channel electrodes. Therefore, we present a novel method to exquisitely control Electro Osmotic Flow (EOF) by using integrated electrodes fabricated beneath a meandering channel geometry (Figure 1). Equation 1 describes EOF velocity for AC-driven flow, where εo and εr respectively are the permittivity of vacuum and that of water, ζ the zeta potential at the solid liquid interface, η the viscosity, Ex the electric field:
Item Type:Conference or Workshop Item
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/62717
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