Fabrication of organic molecules/ZnO hybrid structures toward glucose sensors

Bio applications of compound semiconductors are of great interest and much attention has been paid to ZnO-based materials because of their multifunctional properties. Toward the biologically sensitive field effect transistor (BioFET) (Schoning and Poghossian, 2002), biochemical functionalization remains a fundamental issue. For instance, for the realization of glucose sensor, glucose specifically sensitive enzymes, such as glucose oxidase, need to be immobilized via spacer molecules. In this work, spacer molecule modified ZnO surface as well as ZnMgO alloys were characterized by X-ray photoelectron spectroscopy (XPS).