Patent ID: 8143908
Filing Date: 2012-03-27
Classification: G01N

Abstract:
1. A biosensor for measuring a concentration of an analyte within a medium, comprising: an electrical charge storage, the electrical charge storage comprising a sensor electrode; a resistive layer comprising an electrical resistance which changes upon contact with the analyte, and a measurer coupled to the electrical charge storage for measuring an effect of electrical charges stored in the electrical charge storage or passing between the electrical charge storage and the medium; wherein the resistive layer is contacted with the medium and is arranged between the medium and the sensor electrode such that during contact with the medium, electrical charges stored in the electrical charge storage prior to the contact are passed between the electrical charge storage and the medium through the resistive layer at a rate determined by the electrical resistance of the resistive layer, wherein a change in a number of electrical charges stored by the electrical charge storage over a period of time is determined by the measurer to measure the concentration of the analyte.