Patent ID: 8835184
Filing Date: 2014-09-16
Classification: B01L,G01N

Abstract:
1. A microfluidic structure comprising: a fluidic channel, configured to guide a flow of a fluid comprising a target analyte along a length of the fluidic channel in a first direction, the fluidic channel having a width in a second direction perpendicular to the first direction and a depth in a third direction perpendicular to the first direction and the second direction, the fluidic channel comprising a non-porous material; a reagent pad of porous material located within the fluidic channel and having a size in the second direction substantially similar to the width of the fluidic channel wherein the reagent pad has a size in the third direction that is substantially similar to the depth of the fluidic channel; and a sensor pad of porous material located within the fluidic channel and downstream from the reagent pad and having a size in the second direction substantially similar to the width of the fluidic channel, the reagent pad and the sensor pad being separated by a free space diffusion zone having a length in the first direction between 0.5 and 5 mm, wherein the sensor pad comprises immobilized target analyte-specific receptors that can bind the target analyte and/or a labelled product of a displacement, competition or sandwich affinity assay.