Khamis, S. M.Jones, R. A.Johnson, A.T. CharliePreti, G.Kwak, J.Gelperin, A.2023-05-232023-05-232012-04-172012-06-28https://repository.upenn.edu/handle/20.500.14332/42943We have explored the abilities of all-electronic DNA-carbon nanotube (DNA-NT) vapor sensors to discriminate very similar classes ofmolecules.We screened hundreds ofDNA-NT devices against a panel of compounds chosen because of their similarities. We demonstrated that DNA-NT vapor sensors readily discriminate between series of chemical homologues that differ by single methyl groups. DNA-NT devices also discriminate among structural isomers and optical isomers, a trait common in biological olfactory systems, but only recently demonstrated for electronic FET based chemical sensors.Physical Sciences and MathematicsPhysicsArticle