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Analytical devices with integrated desiccant

  • US 8,617,486 B2
  • Filed: 05/06/2013
  • Issued: 12/31/2013
  • Est. Priority Date: 04/20/2007
  • Status: Active Grant
First Claim
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1. A lateral flow immunoassay device for detection of an analyte in a biological sample, comprising:

  • an analytical test strip comprisinga support member,a plurality of porous pads in fluid communication, said plurality of porous pads in contact with the support member and including, in sequence, a sample receiving pad, a label pad containing mobile tag reagents, a test pad containing immobilized binding reagents, and an absorbent pad which serves as a sink zone, anda desiccant portion, comprising a film or membrane having desiccant dispersed therein, which is laminated to the analytical test strip, such that said desiccant is disposed adjacent the absorbent pad,wherein said desiccant portion remains integral with the analytical test strip during use thereof.

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