Fabrication of carbon-nanotube enhanced piezoelectric membrane-based biosensor

In this article, we report a novel method of fabrication of carbon-nanotube (CNT) enhanced piezoelectric membrane based biosensor. The piezoelectric membrane was fabricated by micro-machining technique and CNTs were synthesized on the backside of the membrane using thermal chemical vapor deposition. CNT has extraordinary electrochemical property and it possesses a hollow core and large specific surface area which is suitable for storing guest molecules. Therefore, it was introduced onto the piezoelectric membrane as bio-receptor to capture the bio-molecules.