Patent ID: 8702921
Filing Date: 2014-04-22
Classification: G01N

Abstract:
1. A method for operating a biosensor array having a substrate, a plurality of biosensor zones arranged on the substrate and comprising a first sensor electrode and a second sensor electrode, each of which biosensor zones has a first terminal and a second terminal, wherein the first terminal is directly connected to the first sensor electrode and the second terminal is directly connected to the second sensor electrode, at least one drive line and at least one detection line, the at least one drive line being electrically insulated from the at least one detection line, wherein in each case the first terminal of each biosensor zone is coupled to precisely one of the at least one drive line and the second terminal of each biosensor zone being coupled to precisely one of the at least one detection line, at least one of the at least one drive line and at least one of the at least one detection line is coupled to at least two of the biosensor zones, a drive unit configured to provide an electrical drive signal, a detection unit configured to detect an electrical detection signal resulting from the electrical drive signal, and a selection unit configured to couple the drive unit to the drive line of a biosensor zone to be selected and the detection unit to the detection line of the biosensor zone to be selected, whereby the biosensor zone is selected, the method comprising: coupling the drive unit to the drive line of a biosensor zone to be selected and coupling the detection unit to the detection line of the biosensor zone to be selected via the first terminal and the second terminal connected to the biosensor zone including capture molecules immobilized thereon, whereby the biosensor zone including the first sensor electrode and the second sensor electrode is configured such that capture molecules can be immobilized thereon and capture molecules are immobilized on at least one of the first sensor electrode and the second sensor electrode, whereby the biosensor zone is selected; providing the drive line of the selected biosensor zone with an electrical drive signal; and detecting an electrical detection signal of the selected biosensor zone that results from the electrical drive signal, on the detection line of the selected biosensor zone.