Chemistry: electrical and wave energy – Apparatus – Electrophoretic or electro-osmotic apparatus
Patent
1995-06-06
1997-05-27
Phasge, Arun S.
Chemistry: electrical and wave energy
Apparatus
Electrophoretic or electro-osmotic apparatus
417 48, 417 49, 417 50, 417 53, B01D 6142, F04F 1100
Patent
active
056328761
ABSTRACT:
By combining electro-osmotic and electrohydrodynamic pumps in a microchannel, both polar and non-polar fluids can be moved along said channel. The pumps can be made from pairs of wire electrodes inserted into openings in the channel and connected to a source of a pulsed DC power. By reversing the voltages on alternate pairs of pumps, fluid flow can be reversed, thereby acting as a gate or valve. By using digital drivers, for example shift registers that can apply a signal to a switching device connected to an electrode by means of enabling and latch signals to an AND gate, control of flow in individual channels in an array of channels can be had with a high degree of integration, and provide for ready manufacturability.
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Burton Charlotte A.
Cherukuri Satyam C.
McBride Sterling E.
Zanzucchi Peter J.
Burke William J.
David Sarnoff Research Center Inc.
Phasge Arun S,.
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