Patent ID: 8647821
Filing Date: 2014-02-11
Classification: C25B,G01N,H01M,Y10T

Abstract:
1. A method for synthesizing a polymer on a surface of at least one sensing electrode of a device, the method comprising: exposing the at least one sensing electrode to one or more monomer bases; and binding the one or more monomer bases on the surface by creating an acidic or basic field that deprotects the one or more monomer bases, wherein the device comprises: at least one drive electrode, the at least one sensing electrode and at least one reference electrode on a surface of a substrate; and an integrating charge amplifier connected to the at least one sensing electrode and configured to detect the change in charge or effective capacitance on the surface of the at least one sensing electrode due to binding of the one or more monomer bases to the at least one sensing electrode, wherein the at least one sensing electrode comprises a sensing routing path, the reference electrode comprises a reference routing path and the sensing routing path and reference routing path are matched and wherein the reference electrode configured to provide differential measurements of change in charge and effective capacitance; wherein the device further comprises a confinement electrode and wherein the acidic or basic field is confined in a vicinity of the surface by the confinement electrode.