Chemistry: electrical and wave energy – Apparatus – Electrophoretic or electro-osmotic apparatus
Patent
1996-12-17
2000-05-30
Redding, David A.
Chemistry: electrical and wave energy
Apparatus
Electrophoretic or electro-osmotic apparatus
204604, 137606, 251 7, 25112906, 251213, G01N 2726
Patent
active
060687517
ABSTRACT:
A microfluidic delivery system (20) and microfluidic system (100) control flows of a liquid or a gas through elongated capillaries (62, 126) that are enclosed along at least one surface by a layer (42, 114) of a malleable material. An electrically-powered actuator included in the systems (20, 100) extends toward or retracts a blade from the layer (42, 114) of a malleable material to either occlude or open capillaries. Reservoirs (46, 124) included in a pouch (22, 108) together with the capillaries (62, 126) supply fluids whose flow is controlled by movement of the blades. The microfluidic system (100) permits dispensing at will, under microprocessor control at predetermined flow rates, liquids, samples, chemicals, reagents and body fluids, and mixing them together and/or reacting for diagnostic medical or analytical tests, DNA sequencing etc. The microfluidic delivery system (20) and microfluidic system (100) may be used for clinical testing, environmental or forensic testing, analytical chemistry, fine chemistry, biological sciences, combinatorial synthesis, etc.
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Redding David A.
Schreiber Donald E.
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