Patent ID: 9176087
Filing Date: 2015-11-03
Classification: B82Y,C12Q,G01D,G01K,G01L,G01N,G01R,G06K

Abstract:
1. A method comprising: contacting an electrode of a device comprising a first circuitry and a second circuitry to a solution comprising one or more analyte, the electrode having a capacitance and arranged in an array comprising a plurality of electrodes; connecting the electrode to a bias source such that a voltage of the electrode is substantially at a voltage of the bias source; disconnecting the electrode from the bias source; and measuring change of the voltage of the electrode; wherein the device comprises the plurality of electrodes arranged in the array, the plurality of electrodes configured to be exposed to the solution and having the capacitance; and wherein the first circuitry is configured to (a) set a DC voltage on the electrode, and configured to charge or discharge the capacitance through a redox reaction occurring at the electrode; and the second circuitry is configured to measure a rate of charging or discharging of the capacitance of the electrode, or (b) controllably connect the electrode to the bias source and controllably disconnect the electrode from the bias source; and the second circuitry is configured to measure the rate of charging or discharging of the capacitance of the electrode.