Chemical field effect sensors comprising nanotube field effect devices having biopolymers such as single stranded DNA or RNA functionally adsorbed to the nanotubes are provided. Also included are arrays comprising the sensors and methods of using the devices to detect volatile compounds.
Research leading to the disclosed inventions was funded, in part, by the United States Department of Energy, Grant No. DE-FG02-98ER45701, and from the Laboratory for Research on the Structure of Matter, National Science Foundation, Grant No. NSF DMR00-79909. Accordingly, the United States government may have certain rights in the inventions described herein.