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Proceedings Paper

Explosives detection using nanoporous coatings
Author(s): María Pilar Pina; Ismael Pellejero; Miguel Urbiztondo; Javier Sesé; J. Santamaría
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Paper Abstract

Zeolite-coated cantilevers provided with internal heating elements have been developed and used for the selective detection of nitroderivates, in particular o-nitrotoluene as an example of an explosive-related molecule. In particular, Co exchanged commercial BEA zeolites have been deployed of rectangular Si cantilevers by microdropping technique. In particular, two different strategies have been demonstrated to increase the zeolite modified cantilevers performance: the sensing coating and the operating temperature. As a result, o-nitrotoluene LOD values below 1 ppm are attained at room temperature conditions; whereas the interference of toluene at concentrations below 1000 ppm is completely suppressed by heating the cantilever.

Paper Details

Date Published: 13 May 2011
PDF: 16 pages
Proc. SPIE 8031, Micro- and Nanotechnology Sensors, Systems, and Applications III, 803124 (13 May 2011); doi: 10.1117/12.883780
Show Author Affiliations
María Pilar Pina, Instituto de Nanociencia de Aragón, Univ. de Zaragoza (Spain)
Ismael Pellejero, Instituto de Nanociencia de Aragón, Univ. de Zaragoza (Spain)
Miguel Urbiztondo, Instituto de Nanociencia de Aragón, Univ. de Zaragoza (Spain)
Javier Sesé, Instituto de Nanociencia de Aragón, Univ. de Zaragoza (Spain)
J. Santamaría, Instituto de Nanociencia de Aragón, Univ. de Zaragoza (Spain)


Published in SPIE Proceedings Vol. 8031:
Micro- and Nanotechnology Sensors, Systems, and Applications III
Thomas George; M. Saif Islam; Achyut K. Dutta, Editor(s)

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