Patent ID: 9671402
Date: 2017-06-06
CPC Classifications: G01N

Claim:
1. A porous substrate having a length and a width and comprising a reagent reservoir region and a lateral flow region, said reagent reservoir region comprising or bordered by an impermeable or hydrophobic barrier, said impermeable or hydrophobic barrier substantially blocking flow of a liquid from the reagent reservoir region into the lateral flow region until lateral flow is initiated, wherein said reagent reservoir region comprises at least a first reagent reservoir sub-region and a second reagent reservoir sub-region, wherein the first and second reagent reservoir sub-regions are not in fluid communication and are separated by a hydrophobic or impermeable barrier that is parallel relative to flow direction; and said lateral flow region comprises at least a first lateral flow sub-region and a second lateral flow sub-region, wherein said first and second lateral flow sub-regions are not in fluid communication and are separated by a hydrophobic or impermeable barrier that is parallel relative to flow direction, wherein the first reagent reservoir sub-region is configured to deliver reagents therein to the first lateral flow sub-region and the second lateral flow sub-region is configured to deliver reagents therein to the second reagent reservoir sub-region.