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An artificial nose based on a micromechanical cantilever array

Lang, H. P. and Baller, M. K. and Berger, R. and Gerber, C. and Gimzewski, J. K. and Battiston, F. M. and Fornaro, P. and Ramseyer, J. P. and Meyer, E. and Guntherodt, H. J.. (1999) An artificial nose based on a micromechanical cantilever array. Analytica chimica acta, Vol. 393, H. 1-3. pp. 59-65.

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Official URL: http://edoc.unibas.ch/dok/A5839447

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Abstract

A novel chemical sensor based on a micromechanical array of silicon cantilevers is presented. Chemical reactions are transduced by sensitization of cantilevers with coatings such as metals, self-assembled monolayers, or polymers into a mechanical response. This is read out using an optical beam-deflection technique by a sequential readout scheme. Reference cantilever sensors permit subtraction of background signals (differential measurement). Coating of each cantilever sensor with a different sensitive layer allows operation of the array-device as a new form of chemical nose. Detection of hydrogen, primary alcohols, natural flavors, and water vapor is demonstrated. We show that the magnitude of sensor response is proportional to the amount of analyte present. (C) 1999 Elsevier Science B.V. All rights reserved.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Elsevier
ISSN:0003-2670
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:14 Sep 2012 07:18
Deposited On:14 Sep 2012 06:44

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