Patent ID: 8617382
Filing Date: 2013-12-31
Classification: G01N

Abstract:
1. A sensor array, comprising: at least three electrodes forming a pixel arrangement, designed as biosensor arrangements for detection of biomolecules; a potentiostat circuit; and a switching unit, designed such that at least one of the at least three electrodes is selectively connected as a working electrode, which is coupled to an electrolytic analyte, the other electrodes of the at least three electrodes being connected as an opposing electrode, wherein each of the at least three electrodes can be alternatively connected as the working electrode or as the opposing electrode by the switching unit and the opposing electrode is exclusively formed by the other electrodes of the at least three electrodes of the pixel arrangement, not selected as the working electrode, and connected as the opposing electrode, the at least three electrodes being designed such that sensor events take place at an electrode, connected as the working electrode, of the at least three electrodes in an electrolyte solution when in the presence of the electrolytic analyte, wherein the sensor array is monolithically integrated at least one of in and on a substrate and wherein the switching unit deactivates an operating circuit of the selected working electrode and connects the selected working electrode to the selected opposing electrode via the potentiostat circuit.