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Microfluidic control using dielectric pumping

  • US 6,949,176 B2
  • Filed: 02/28/2002
  • Issued: 09/27/2005
  • Est. Priority Date: 02/28/2001
  • Status: Expired due to Term
First Claim
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1. A pumping device comprising a substrate having walls which define a microchannel, a first electrode, and a second electrode, wherein said first and second electrodes are positioned to form a first capacitor having an electric field that traverses the microchannel, wherein the microchannel contains a first fluid and a second fluid between the electrodes, said first and second fluids having a first interface therebetween and said first and second fluids having different constants such that the first interface between said fluids moves in the presence of the electric field, and wherein the first electrode is configured to have a first potential applied to a first end of the electrode and a second potential applied to a second end of the electrode.

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