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Diagnostic detection device

  • US 8,211,711 B2
  • Filed: 06/25/2010
  • Issued: 07/03/2012
  • Est. Priority Date: 03/01/2007
  • Status: Active Grant
First Claim
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1. A device for detecting an analyte in a liquid sample deposited on a first portion of the device for transport to a second portion of the device that is in fluid contact with the first portion, wherein the device comprises:

  • A) in the first portion thereof, a labeled conjugate comprising a binding member reactive with a first epitope of the analyte and a label comprising colloidal gold particles having a mean particle size of at least about 50 nm prior to formation of the labeled conjugate; and

    B) in the second portion thereof, a capture component that is directly or indirectly reactive with a second epitope of the analyte.

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