Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Trace chemical detection in air using electronic noses and nano-structured sensing materials

Published

Author(s)

Kurt D. Benkstein, Christopher B. Montgomery, Stephen Semancik

Abstract

For a variety of application areas, including homeland defense, environmental and health monitoring and emergency response, the detection of gas-phase chemicals is of great interest. One approach to these challenging sensing tasks is to use arrays of broadly selective chemical sensors as an electronic nose. In this presentation, we describe recent research at NIST, where we employ multi- element microscale chemiresistor arrays populated with varied (chemically and morphologically) sensing materials. Furthermore, we modulate the operating temperature of the microsensors on millisecond timescales to enable increased selectivity for the detection of several volatile organic compounds in air at varied concentrations less than 100 µmol/mol.
Proceedings Title
SPIE Proceedings
Conference Dates
May 5-9, 2014
Conference Location
Baltimore, MD
Conference Title
SPIE DSS 2014

Keywords

gas-phase sensors, e-nose, chemiresistor

Citation

Benkstein, K. , Montgomery, C. and Semancik, S. (2014), Trace chemical detection in air using electronic noses and nano-structured sensing materials, SPIE Proceedings, Baltimore, MD, [online], https://doi.org/10.1117/12.2067312 (Accessed June 22, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created June 11, 2014, Updated November 10, 2018