Microfluidic circuit designs for performing fluidic manipulations that reduce the number of pumping sources and fluid reservoirs

  • US 6,213,151 B1
  • Filed: 04/25/2000
  • Issued: 04/10/2001
  • Est. Priority Date: 12/16/1998
  • Status: Expired due to Term
First Claim
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1. An apparatus for effecting microfluidic manipulation comprising:

  • a first reservoir adapted for containing a first material;

    a second reservoir adapted for containing a second material;

    a third reservoir adapted for containing a third material;

    a first channel having a first end in fluidic communication with said first reservoir;

    a second channel having a first end in fluidic communication with said second reservoir;

    a third channel having a first end in fluidic communication with said third reservoir;

    said first, second, and third channels having respective second ends that are interconnected to form a junction; and

    transport means operatively connected to said first and second channels, or to said third channel, for effecting transport of the first and second materials from said first and second reservoirs toward said third reservoir;

    wherein the lengths, cross-sections, or combinations thereof, of the first, second, and third channels are dimensioned to provide mixing of the first and second materials at said junction in a first ratio upon application of the transport means to said first and second channels or to said third channel.

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