Patent ID: 7713474
Filing Date: 2010-05-11
Classification: G01N

Abstract:
1. A device for detection of an analyte in a liquid sample comprising: a liquid permeable layer for transferring portions of said liquid sample, two adjacent layers in contact with and adhering to said liquid permeable layer, at least one of said adjacent layers containing reagents for detecting said analyte, said liquid permeable layer comprising a blend of an aqueous polymer dispersion and a water soluble polymer applied as a coating on one of said two adjacent layers and dried at a temperature of about 40° C. to 90° C. to form a dried liquid permeable layer having a dried thickness of about 3 to 100 mils (75 to 2540 μm), said dried liquid permeable layer on one of said two adjacent layers having been pressed together with the second of said two adjacent layers with a pressure of about 3 to 100 psi sufficient to cause said two adjacent layers to adhere to said liquid permeable layer, and the pressed liquid permeable layer and two adjacent layers having been further cured such that the pressed liquid permeable layer adheres to said two adjacent layers while retaining liquid permeability.