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Electrical current for controlling fluid parameters in microchannels

  • US 6,174,675 B1
  • Filed: 08/27/1998
  • Issued: 01/16/2001
  • Est. Priority Date: 11/25/1997
  • Status: Expired due to Term
First Claim
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1. A microfluidic system, comprising:

  • a substrate having at least a first microscale channel disposed therein;

    a sensor operably coupled to the channel for determining a temperature of a fluid in at least a first portion of the channel; and

    an energy source responsive to the temperature determined in the fluid in the first portion of the first channel, for applying a first electrical current through the at least first portion of the first channel to heat a fluid disposed within the first portion of the channel to a first elevated temperature.

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