FERROFLUID CONTROL AND SAMPLE COLLECTION FOR MICROFLUIDIC APPLICATION
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United States of America Patent
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Issued Date -
Nov 1, 2012
app pub date -
Jun 29, 2011
filing date -
Apr 27, 2011
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Abandoned
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Abstract
A fluid conveyance system includes a flow passage and a cavity adjacent a side of the flow passage. A wall of the passage includes a flexible section that separates the cavity from the flow passage. The cavity contains a ferrofluidic material. The system further includes at least one magnetic field source positioned adjacent the flow channel. The magnetic field source is operable to move the ferrofluidic material in the cavity to exert a pressure on the flexible section and displace the flexible section into the flow passage to alter the flow of material through the passage. A method of collecting components from a sample volume includes the steps of distributing magnetic particles into the sample volume, capturing the components from the sample volume, and applying a magnetic field to the sample volume to control directional flow of the sample volume.
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