Patent ID: 7922975
Filing Date: 2011-04-12
Classification: G01N

Abstract:
1. A resonant sensor for detecting a specific environmental analyte, the resonant sensor comprising a top conductive layer of two ground conductors and a center signal line, a bottom conductive layer of two ground lines shunted together by a shunt line and a sensing layer positioned between the top conductive layer and the bottom conductive layer, wherein: the shunt line has a non-linear pattern adding inductance to the shunt line; a capacitive area is created by the overlap of the center signal line of the top conductive layer and the shunt line of the bottom conductive layer; and a change in electrical properties of the sensing layer in response to binding of the specific environmental analyte with the sensing layer produces a corresponding change in capacitance or leakage conductance between the top conductive layer and the bottom conductive layer or between the center signal line and the ground line, the corresponding change indicating the detection of the specific environmental analyte.