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Diagnostic devices and apparatus for the controlled movement of reagents without membranes

  • US 20050112782A1
  • Filed: 03/02/2004
  • Published: 05/26/2005
  • Est. Priority Date: 05/21/1992
  • Status: Active Grant
First Claim
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1. An assay device comprising:

  • a housing;

    a first device region formed by or within said housing for receiving a fluid sample; and

    a second device region fluidly connected to said first device region, said second device region comprising one or more capture zones on a surface within said housing, each said capture zone comprising molecules of a first receptor reactive with an analyte of interest and at least one analyte sensor configured and arranged to detect an electrochemical signal related to reaction of a detectable amount of said analyte of interest with molecules of said first receptor and produce a measurable signal in response;

    wherein said assay device is configured and arranged to deliver a predetermined volume of said fluid sample from said first device region to said second device region for determining the presence or amount of one or more analytes of interest therein.

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