Published March 28, 1995
| Published
Journal Article
Open
A chemically diverse conducting polymer-based "electronic nose"
- Creators
-
Freund, Michael S.
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Lewis, Nathan S.
Chicago
An error occurred while generating the citation.
Abstract
We describe a method for generating a variety of chemically diverse broadly responsive low-power vapor sensors. The chemical polymerization of pyrrole in the presence of plasticizers has yielded conducting organic polymer films whose resistivities are sensitive to the identity and concentration of various vapors in air. An array of such sensing elements produced a chemically reversible diagnostic pattern of electrical resistance changes upon exposure to different odorants. Principal component analysis has demonstrated that such sensors can identify and quantify different airborne organic solvents and can yield information on the components of gas mixtures.
Additional Information
© 1995 National Academy of Sciences. Communicated by Robert H. Grubbs, California Institute of Technology, Pasadena, CA, November 28, 1994. We thank Profs. J. J. Hopfield and J. M. Bower, and the members of their research groups, for helpful discussions. This work was supported in part by the Caltech Consortium in Chemistry and Chemical Engineering; E. I. DuPont de Nemours and Company, Inc., the Eastman Kodak Company, National Aeronautics and Space Administration, and National Science Foundation Grant CHE-9202583. This is contribution no. 8952. The publication costs of this article were defrayed in part by page charge payment. This article must therefore be hereby marked "advertisement" in accordance with 18 U.S.C. §1734 solely to indicate this fact.Attached Files
Published - PNAS-1995-Freund-2652-6.pdf
Files
PNAS-1995-Freund-2652-6.pdf
Files
(1.4 MB)
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Additional details
- PMCID
- PMC42276
- Eprint ID
- 52354
- Resolver ID
- CaltechAUTHORS:20141203-144657553
- Caltech Consortium in Chemistry and Chemical Engineering
- E. I. DuPont de Nemours and Company, Inc.
- Eastman Kodak Corporation
- NASA
- NSF
- CHE-9202583
- Created
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2014-12-03Created from EPrint's datestamp field
- Updated
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2023-04-19Created from EPrint's last_modified field
- Other Numbering System Name
- Caltech Division of Chemistry and Chemical Engineering
- Other Numbering System Identifier
- 8952