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Author Garcia-Romeo, D. ♦ Calvo, B. ♦ Medrano, N. ♦ Pina, M.P. ♦ Almazan, F. ♦ Pellejero, I. ♦ Urbiztondo, M. ♦ Sese, J. ♦ Santamaria, J.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2014
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Explosives ♦ Silicon ♦ Sensors ♦ Coatings ♦ Resonant frequency ♦ Arrays ♦ low-power comsuption ♦ microcantilevers ♦ gas sensing ♦ zeolites ♦ nanoporous coating ♦ explosives ♦ portable lock-in amplifier ♦ actuation and detection
Abstract Recent advances in microcantilever-based sensors have led to a significant increase in sensitivity, making them a competitive solution in highly demanding applications as explosives detection. However, these sensors face severe challenges related to: reliability, sensitivity, reproducibility and throughput; that have yet to be solved for commercial applications. This paper describes our efforts in this direction, particularly on the reproducible detection of nitroaromatic type explosives by means of parallelization combined with: i) nanoporous solids as sensing materials; and, ii) a portable low-power electronic readout interface capable of both excitation and measurement of the multisensing platform. The response of the sensor array, comprising 4 microcantilevers, due to presence of 2-nitrotoluene, a common explosive taggant, has been properly monitored. The obtained results with 4 identical Co-BEA coated Si microcantilevers underline the importance of a proper sensing material degassing on the sensor performance.
Description Author affiliation: Aragon Inst. for Eng. Res., Univ. of Zaragoza, Zaragoza, Spain (Garcia-Romeo, D.; Calvo, B.; Medrano, N.) || Nanosci. Inst. of Aragon, Univ. of Zaragoza, Zaragoza, Spain (Pina, M.P.; Almazan, F.; Pellejero, I.; Urbiztondo, M.; Sese, J.; Santamaria, J.)
ISBN 9781479901623
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2014-11-02
Publisher Place Spain
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 1.12 MB
Page Count 4
Starting Page 1419
Ending Page 1422

Source: IEEE Xplore Digital Library