Microfluidic devices and methods to regulate hydrodynamic and electrical resistance utilizing bulk viscosity enhancers
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United States of America Patent
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Dec 30, 2003
Grant Date -
Apr 25, 2002
app pub date -
May 10, 2001
filing date -
May 11, 2000
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Abstract
Methods and devices for inducing high bulk hydrodynamic resistance and/or for inducing low electrical resistance in microscale systems including bulk viscosity enhancers, surfactants, and electrolytes. High bulk hydrodynamic resistance is optionally utilized to regulate the effects of spontaneous injection and/or dispersion. Induced high hydrodynamic resistance in conjunction with induced low electrical resistance are optionally utilized to provide and regulate electrical fields within microfluidic devices. Integrated systems incorporating the methods of the invention are also provided.
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