Biosensor circuit arrangement including a substrate, a sensor element formed in or on a surface region of the substrate with a physical parameter, which is coupled to a substance to be examined, the type of coupling having a resistive component, the sensor element having an electrically conductive sensor...http://www.google.co.uk/patents/US7019305?utm_source=gb-gplus-sharePatent US7019305 - Biosensor circuit and sensor array consisting of a plurality of said biosensor circuits and biosensor array