Field-effect flow control for microfabricated fluidic networks


Schasfoort, R.B.M. and Schlautmann, S. and Hendrikse, J. and Berg, A. van den (1999) Field-effect flow control for microfabricated fluidic networks. Science, 286 (5441). pp. 942-945. ISSN 0036-8075

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Abstract:The magnitude and direction of the electro-osmotic flow (EOF) inside a microfabricated fluid channel can be controlled by a perpendicular electric field of 1.5 megavolts per centimeter generated by a voltage of only 50 volts. A microdevice called a "flowFET," with functionality comparable to that of a field-effect transistor (FET) in microelectronics, has been realized. Two flowFETs integrated with a channel junction have been used to generate opposite flows inside a single EOF-pumped channel, thus illustrating the potential of the flowFET as a controlling and switching element in microfluidic networks.
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Copyright:© 1999 American Association for the Advancement of Science
Science and Technology (TNW)
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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