Chemistry: electrical and wave energy – Apparatus – Electrophoretic or electro-osmotic apparatus
Patent
1994-05-10
1996-09-17
Gorgos, Kathryn
Chemistry: electrical and wave energy
Apparatus
Electrophoretic or electro-osmotic apparatus
204450, 204518, 204627, G01N 2726, G01N 27447
Patent
active
055565280
ABSTRACT:
Devices are useful to capture or dispense target molecules and include an electric field-responsive valve unit. The valve unit includes an active control structure having at least one monomolecular layer and being up to about 10 nm thick. The active control structure is formed by a majority of molecular species with a dipolar moment greater than about 5 Debye, and operable in response to an electric field at a threshold value. A particularly preferred embodiment has the active control structure carried on a microporous membrane with pores in the nanometer range. Applications for inventive embodiments include drug delivery and target molecule capture during electrophoresis separations.
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Bohn Paul W.
Lu Wenyuan
Biotechnology Research & Development Corporation
Gorgos Kathryn
Starsiak Jr. John S.
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