A cantilever array-based artificial nose

Baller, M. K. and Lang, H. P. and Fritz, J. and Gerber, C. and Gimzewski, J. K. and Drechsler, U. and Rothuizen, H. and Despont, M. and Vettiger, P. and Battiston, F. M. and Ramseyer, J. P. and Fornaro, P. and Meyer, E. and Guntherodt, H. J.. (2000) A cantilever array-based artificial nose. Ultramicroscopy, Vol. 82, H. 1-4. pp. 1-9.

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Official URL: http://edoc.unibas.ch/dok/A5262164

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We present quantitative and qualitative detection of analyte vapors using a microfabricated silicon cantilever array, To observe transduction of physical and chemical processes into nanomechanical motion of the cantilever, swelling of a polymer layer on the cantilever is monitored during exposure to the analyte. This motion is tracked by a beam-deflection technique using a time multiplexing scheme. The response pattern of eight cantilevers is analyzed via principal component analysis (PCA) and artificial neural network (ANN) techniques, which facilitates the application of the device as an artificial chemical nose. Analytes tested comprise chemical solvents, a homologous series of primary alcohols, and natural flavors. First differential measurements of surface stress change due to protein adsorption on a cantilever array are shown using a liquid cell.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:27
Deposited On:22 Mar 2012 13:55

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