×

Electropipettor and compensation means for electrophoretic bias

  • US 20030085126A1
  • Filed: 12/18/2002
  • Published: 05/08/2003
  • Est. Priority Date: 06/28/1996
  • Status: Active Grant
First Claim
Patent Images

1. A microfluidic system with compensation for electrophoretic bias, comprising a capillary channel having sides, a first end and a second end, said capillary channel further divided into first and second portions, said sides of said first and second portions having surface charges of opposite polarities;

  • and a first electrode at said first end;

    a second electrode between said first and second portions of said capillary channel; and

    a third electrode at said second end, said first, second and third electrodes set at voltages such that a fluid is electroosmotically pumped through said first and second portions from said first end to said second end, and electrophoretic movement in said second portion is opposite to electrophoretic movement in said first portion.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×