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Immunological assay conducted in a microlaboratory array

  • US 5,858,804 A
  • Filed: 08/20/1997
  • Issued: 01/12/1999
  • Est. Priority Date: 11/10/1994
  • Status: Expired due to Fees
First Claim
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1. A method of performing an immunological assay separately and in parallel for each of at least a first sample containing or prospectively containing a first binding moiety and a second sample containing or prospectively containing the first binding moiety, the method comprising:

  • placing the first sample and the second sample into an array comprising a solid substrate having an upper surface and a lower surface, a plurality of reservoirs, a plurality of wells connected to the reservoirs and channels that provide the connections between the wells and the reservoirs, wherein at least one channel is a crossover channel formed in the upper surface of the substrate and is situated above another channel formed in the lower surface of the substrate, thereby forming crossovers comprising crossing but non-intersecting channels;

    moving said first sample into a first well containing a second binding moiety that binds to the first binding moiety, wherein the second binding moiety is bound to within the first well;

    moving said second sample into a second well within which the second binding moiety is bound;

    parallelly pumping from the reservoirs one or more fluids into the first and second wells to develop a detectable result that varies depending on the amount of the first binding moiety present in the first or second wells; and

    measuring the detectable result.

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