Biosensor comprising an organic field effect transistor and method for the fabrication of the sensor

摘要

An organic field effect transistor for the detection of biological target molecules and a method of fabricating the transistor. The transistor includes a transistor gate channel having a semiconductive film comprising organic molecules. Probe molecules capable of binding to target molecules are coupled to an outer surface of the semiconductive film such that the interior of the film being substantially free of the probe molecules. Preferably the semi conductive film is a monolayer and linker molecules couple the semi conductive film and the probe molecules.