Department of Physics Papers

Document Type

Journal Article

Date of this Version

4-17-2012

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.

Comments

Khamis, S. M., Jones, R. A., Johnson, A. T. C., Preti, G., Kwak, J., & Gelperin, A. (2012). DNA-decorated carbon nanotube-based FETs as ultrasensitive chemical sensors: Discrimination of homologues, structural isomers, and optical isomers. AIP Advances, 2(2), 022110. doi: 10.1063/1.4705394

© 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License.

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Date Posted: 28 June 2012

This document has been peer reviewed.