Analyte Probe And Determining Water Vapor Transmission Rate

Invention

An analyte probe determines water vapor transmission rate of a test coating and includes: a graphene analysis layer disposed the substrate and including an analytical interface for receiving a test coating and an n-dopant, such that: the substrate and graphene analysis layer are arranged in analyte sensor; the graphene analysis layer changes microwave frequency input signal to microwave frequency response signal upon being subjected to microwave frequency input signal, wherein the change from microwave frequency input signal to microwave frequency response signal is directly proportional to the amount of analyte disposed on analytical interface; the analytical interface receives analyte communicated through test coating disposed on analytical interface; and the test coating disposed on analytical interface of graphene analysis layer and comprising a probe surface, such that the test coating has a transmission rate of the analyte to analytical interface determinable by a microwave frequency response from the graphene analysis layer.