DNA-decorated carbon nanotube-based FETs as ultrasensitive chemical sensors: Discrimination of homologues, structural isomers, and optical isomers

S. M. Khamis, R. A. Jones, A. T.C. Johnson, G. Preti, J. Kwak, A. Gelperin

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

We 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.

Original languageEnglish (US)
Article number022110
JournalAIP Advances
Volume2
Issue number2
DOIs
StatePublished - 2012

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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