Wednesday, January 16, 2008

US Patent 7318908 - Multi-chemical carbon nanotube sensor

This patent from Stanford has priority going back to 2001 and includes basic claims to carbon nanotube chemical sensors that are functionalized to detect more than one chemical. Claim 1 reads:

1. A molecular sensor comprising a plurality of carbon nanotubes including: a first carbon nanotube having a first composition and adapted for detecting a first molecular species; and a second carbon nanotube having a second composition and adapted for detecting a second molecular species, the first composition being different from the second composition.