Patent ID: 8660628
Filing Date: 2014-02-25
Classification: G01N

Abstract:
1. An amperometric analyte sensor apparatus comprising: a base layer comprising a working electrode; an analyte sensing layer coating the working electrode; and an analyte modulating layer coating the analyte sensing layer, wherein: the analyte modulating layer comprises a blended mixture of a linear polyurethane/polyurea polymer and a branched acrylate polymer; the linear polyurethane/polyurea polymer exhibits a permeability to glucose that decreases by between 1% and 8% per degree centigrade as temperature is increased from 22 to 40 degrees centigrade; the branched acrylate polymer exhibits a permeability to glucose that increases by between 1% and 8% per degree centigrade as temperature is increased from 22 to 40 degrees centigrade; the linear polyurethane/polyurea polymer and the branched acrylate polymer are blended at a ratio of between 1:1 and 1:20 by weight %; and the analyte modulating layer comprises a blend of: (1) a polyurethane/polyurea polymer formed from a mixture comprising: (2) a branched acrylate polymer formed from a mixture comprising: