×

Voltage/current testing equipment for microfluidic devices

  • US 7,161,356 B1
  • Filed: 05/12/2003
  • Issued: 01/09/2007
  • Est. Priority Date: 06/05/2002
  • Status: Active Grant
First Claim
Patent Images

1. A method of verifying the proper function of a microfluidic device, which device comprises at least first, second and third fluidic openings, which fluidic openings are fluidly coupled to at least first, second and third microscale channel elements, respectively, the method comprising:

  • flowing an electrically conductive buffer through the first, second and third microscale channel elements;

    setting a known applied voltage potential between the first and second fluidic openings;

    setting a current in the third microscale channel element to be approximately zero;

    detecting a resulting voltage at the third fluidic opening; and

    ,comparing the detected voltage at the third fluidic opening with a calculated target voltage expected at the third fluidic opening to determine whether there is a fault in at least one of the first and second microscale channel elements.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×