Indicator immobilization on assay devices

G - Physics – 01 – N

Patent

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G01N 33/50 (2006.01)

Patent

CA 2670526

A lateral flow assay device for detecting the presence or quantity of an analyte in a test sample is provided. The device comprises a chromatographic medium that defines a detection zone, wherein a crosslinked network is non- diffusively immobilized within the detection zone. The crosslinked network contains a small molecule indicator that is configured to undergo a detectable color change in the presence of the analyte.

L'invention concerne un dispositif d'essai à écoulement latéral pour détecter la présence ou la quantité d'un analyte dans un échantillon d'essai. Le dispositif comprend un milieu chromatographique qui définit une zone de détection, un réseau réticulé étant immobilisé de façon non diffusive à l'intérieur de la zone de détection. Le réseau réticulé contient un indicateur à petite molécule qui est configuré pour subir un changement de couleur détectable en présence de l'analyte.

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