Performance Characteristics of Carbon Nanotube Field Effect Transistor based Immunosensor

Abstract

Carbon nanotube biosensors are used to detect DNA and Proteins. Transistor with array of Carbon nanotubes has proved to enhance in their performance compared to that of conventional Si based. A device with array of Carbon nanotube to respond the Osteopontin (OPN) is a potential new biomarker of prostate cancer has been developed and proposed in this paper. The simulation of the biosensor is simulated using biosensor lab version-2 online through nanohub.org. The performance of the device is checked with a) settling time b) settling time and sensitivity. It is observed that the device reacts with change in time, molecule concentration, buffer-ion concentration. The settling time of the device is found to be 1 second.