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Aromatic Hydrocarbon Detection Using Self-Assembled Monolayer Coated Cantilevers

Published online by Cambridge University Press:  01 February 2011

Andrew E Riley ,
Alan M Schilowitz ,
Dalia G Yablon  and
Mark M Disko
Andrew E Riley
Affiliation:
[email protected], ExxonMobil, Corporate Strategic Research, 1545 Route 22 East, Annandale, NJ, 08801, United States
Alan M Schilowitz
Affiliation:
[email protected], ExxonMobil, 1545 Route 22 East, Annandale, NJ, 08801, United States
Dalia G Yablon
Affiliation:
[email protected], ExxonMobil, 1545 Route 22 East, Annandale, NJ, 08801, United States
Mark M Disko
Affiliation:
[email protected], ExxonMobil, 1545 Route 22 East, Annandale, NJ, 08801, United States
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Abstract

The presence of toluene and xylene is sensed via surface stress induced deflection of microcantilevers functionalized with self-assembled monolayers (SAMs). Monolayers are formed on gold coated cantilevers using alkanethiols, mercaptanols, and aromatic thiols. These coatings create a variety of chemical functionalities at the cantilever surface, which impact the interactions between target molecules and the cantilever. The differential responses of the cantilevers are investigated as a means to selectively detect aromatic vapors at parts per thousands (ppth) levels.

Keywords

self-assemblysensoradsorption
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 915: Symposium R – Nanostructured Materials and Hybrid Composites for Gas Sensors and Biomedical Applications , 2006 , 0915-R05-08
Copyright
Copyright © Materials Research Society 2006

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