Devices for use in heterogeneous ligand-receptor assays, having a porous member in contact with a nonabsorbent textured surface, where the surface texturing is such that a capillary network is formed when in fluid communication with the porous member. More particularly, these devices comprise:...http://www.google.es/patents/US5922615?utm_source=gb-gplus-sharePatente US5922615 - Assay devices comprising a porous capture membrane in fluid-withdrawing contact with a nonabsorbent capillary network
Assay devices comprising a porous capture membrane in fluid-withdrawing ...