METHOD FOR INCREASING SENSITIVITY USING LINKER AND SPACER IN CARBON NANOTUBE-BASED BIOSENSOR

摘要

Disclosed is a method of detecting even a very small amount of a target substance by mixing a linker and a spacer at a suitable ratio and immobilizing the mixture on the surface of carbon nanotubes in a carbon nanotube-based biosensor. This method detects a specific substance at the level of femtomoles and lowers the detection limit of conventional carbon nanotube transistor sensors. Accordingly, the method detects even a very small amount of a target substance, and thus the carbon nanotube-based biosensor is a highly useful sensor which can be used either as a medical sensor for diagnosing diseases or as an environmental sensor.