Test device

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G01N 33/543 (2006.01) C12Q 1/68 (2006.01) C12Q 1/70 (2006.01) A61B 10/00 (2006.01) G01N 37/00 (2006.01)

Patent

CA 2167061

A device for the detection of analyte (such as an antibody to a pathogen) in a sample, particularly a saliva sample, has means for detecting false negative results and determining sample viability. The device comprises a first antibody or specific binding molecule coupled to particles and capable of binding to any characteristic molecule of the species (such as another antibody) being tested to form a binary complex; a means for detecting the analyte; and a second, immobilised specific binding molecule capable of binding to the characteristic molecule.

Un dispositif destiné à la détection d'un analyte (tel qu'un anticorps dirigé contre un pathogène) dans un échantillon, particulièrement un échantillon de salive, comprend des moyens permettant de détecter des résultats à faux négatif et de déterminer ainsi la viabilité de l'échantillon. Ce dispositif comprend un premier anticorps ou une première molécule de liaison spécifique couplé à des particules et susceptible de se lier à toute molécule caractéristique de l'espèce soumise à l'essai (telle qu'un autre anticorps), pour former un complexe binaire; un moyen permettant de détecter l'analyte; ainsi qu'une seconde molécule de liaison spécifique immobilisée, susceptible de se lier à la molécule caractéristique.

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