Device incorporating a microfluidic chip for separating analyte from a sample
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United States of America Patent
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Dec 16, 2003
Grant Date -
May 9, 2002
app pub date -
Nov 7, 2001
filing date -
Jun 25, 1999
priority date (Note) -
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Abstract
A device for separating an analyte from a fluid sample comprises a cartridge incorporating a flow-through microfluidic chip. The microfluidic chip includes an extraction chamber having an array of microstructures for capturing the analyte and for subsequently releasing the captured analyte into an elution fluid. Each of the microstructures has an aspect ratio of at least 2:1. The cartridge also includes channels and at least one low controller (e.g., one or more valves) for directing the flow of the sample and elution fluid through the microfluidic chip. The cartridge may optionally include a lysing region for lysing sample components (e.g., cells spores, or microorganisms), a waste chamber for storing waste fluid, and reaction or detection chambers for amplifying or detecting the analyte.
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