Patent ID: 8480877
Filing Date: 2013-07-09
Classification: C12Q,G01N

Abstract:
1. A sensor arrangement for detecting particles contained in an analyte, comprising: a substrate; at least one sensor electrode arranged at least one of on and in the substrate; capture molecules immobilizable on the at least one sensor electrode, the capture molecules being set up in such a way that the capture molecules hybridize with particles to be detected that are contained in an analyte, electrically charged particles generated in the hybridization event being detectable at the at least one sensor electrode; at least one diffusion detection electrode, arranged in a surrounding region of the at least one sensor electrode, set up in such a way that the at least one diffusion detection electrode detects electrically charged particles that are diffusing away from the at least one sensor electrode and are generated in the event of the hybridization event; and a control device, coupled to the at least one diffusion detection electrode, set up in such a way that the control device ends a detection operating state when a signal at the at least one diffusion detection electrode reaches a threshold value.