Thermal transfer methods and structures for microfluidic systems
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United States of America Patent
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Mar 6, 2012
Grant Date -
Jun 26, 2008
app pub date -
Dec 21, 2007
filing date -
Dec 22, 2006
priority date (Note) -
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Abstract
Processing devices that include one or more process arrays with thermal transfer structures that can be used alone or in conjunction with gravity/rotation to transport fluids within a microfluidic system. The thermal transport function can be accomplished by changing the temperature of one or more chambers to create a vacuum to draw fluids in selected directions within the process array. The methods and apparatus of the present invention may provide the ability to move fluids in a direction that is against the direction of gravity or any centrifugal forces generated by rotating a processing device using the thermal transfer structures. In other words, fluids may be moved against the direction of gravity or towards the axis of rotation using the thermally-activated vacuum.
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