FET BASED SENSOR FOR DETECTING BIOMOLECULE, METHOD FOR PREPARING THE SAME, AND METHOD FOR DETECTING BIOMOLECULE USING THE FET BASED SENSOR

摘要

The present invention be include that the single wall carbon nanotube of contact area (Schottky contact area) increased Schottky is related to field effect transistor (SWNT-FET) pedestal sensor for detecting biomolecule. The invention further relates to a kind of methods, are used to detect biomolecule for detecting biomolecule application method and his SWNT- base word effect transistor sensors. The sensor of SWNT FET, being used to detect can be obtained according to the biomolecule of the production method of the invention of a Schottky contact region with thin increased area. Biomolecule detection sensor of the invention has a good sensitivity, the biomolecule for example, in 1 pM, and in a concentration of specific biomolecule non-specific adsorption -- two biomolecule mutual coupling, which can be effectively detected, to be caused.