Glucose electrical detection based on graphene field effect transistors

With copper foils as substrates, large-area and continuous monolayer graphene films were synthesized by chemical vapor deposition under atmospheric pressure. The electrical detection of hydrogen peroxide based on graphene field-effect transistors indicated the electrical signals of graphene transistors were sensitivity to the hydrogen peroxide. Decoration of glucose oxidase on the surface of graphene film, the electrical detection of glucose showed that the modified graphene transistors had high sensitivity to glucose. The detection limitation can reach 0.1mM with a high response speed.