Biochemical and immunochemical assay device

摘要

We describe an assay device which comprises a substrate comprising (i) a porous material capable of chromatographically transporting a liquid and (ii) one or more test reagents for an assay provided on the porous material; and a doping polymer impermeable to the liquid which the porous material is capable of transporting, incorporated into a part of the porous material so as to define a channel in the porous material, the one or more test reagents being provided on the porous material in the channel defined therein.