LOW ELASTICITY FILMS FOR MICROFLUIDIC USE

LOW ELASTICITY FILMS FOR MICROFLUIDIC USE

Microfluidic circuit elements, such as a microvalve, micropump or microvent, formed of a microcavity divided by a diaphragm web into a first subcavity bounded by a first internal wall and a second subcavity bounded by a second internal wall, where the diaphragm web is characterized as a thin film ha...

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Hauptverfasser: SPRAGUE ISAAC, KAY JUSTIN L, BATTRELL C. FREDERICK, BRAGD MATTHEW SCOTT
Format: Patent
Sprache:eng
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CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
TRANSPORTING
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creator SPRAGUE ISAAC
KAY JUSTIN L
BATTRELL C. FREDERICK
BRAGD MATTHEW SCOTT
description Microfluidic circuit elements, such as a microvalve, micropump or microvent, formed of a microcavity divided by a diaphragm web into a first subcavity bounded by a first internal wall and a second subcavity bounded by a second internal wall, where the diaphragm web is characterized as a thin film having a first state contacting the first internal wall and a second state contacting the second internal wall and exhibiting essentially no elasticity in moving between the first state and the second state, the thin film web having been stretched beyond its yield point before or during use are provided. The disclosed elements enable faster and more efficient cycling of the diaphragm in the microcavity and increases the diaphragm surface area. In a preferred embodiment, the microfluidic circuit element is pneumatically driven and controls the motion of fluids in a microassay device.
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subjects CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
TRANSPORTING
title LOW ELASTICITY FILMS FOR MICROFLUIDIC USE
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