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Talanta

Title:		Characterization of an array of Love-wave gas sensors developed using electrospinning technique to deposit nanofibers as sensitive layers
Author(s):		Matatagui D; Fernandez MJ; Fontecha J; Sayago I; Gracia I; Cane C; Horrillo MC; Santos JP;
Address:		"Instituto de Tecnologias Fisicas y de la Informacion (ITEFI), Consejo Superior de Investigaciones Cientificas (CSIC), Serrano 144, 28006 Madrid, Spain. Electronic address: daniel.matatagui@ccadet.unam.mx. Instituto de Tecnologias Fisicas y de la Informacion (ITEFI), Consejo Superior de Investigaciones Cientificas (CSIC), Serrano 144, 28006 Madrid, Spain. Instituto de Microelectronica de Barcelona, CSIC, Campus UAB, 08193 Bellaterra, Spain"
Journal Title:		Talanta
Year:		2014
Volume:		20131221
Issue:
Page Number:		408 - 412
DOI:		10.1016/j.talanta.2013.12.027
ISSN/ISBN:		1873-3573 (Electronic) 0039-9140 (Linking)
Abstract:		"The electrospinning technique has allowed that very different materials are deposited as sensitive layers on Love-wave devices forming a low cost and successful sensor array. Their excellent sensitivity, good linearity and short response time are reported in this paper. Several materials have been used to produce the nanofibers: polymers as Polyvinyl alcohol (PVA), Polyvinylpyrrolidone (PVP) and Polystirene (PS); composites with polymers as PVA+SnCl4; combined polymers as PS+Poly(styrene-alt-maleic anhydride) (PS+PSMA) and metal oxides (SnO2). In order to test the array, well-known chemical warfare agent simulants (CWAs) have been chosen among the volatile organic compounds due to their importance in the security field. Very low concentrations of these compounds have been detected by the array, such as 0.2 ppm of DMMP, a simulant of sarin nerve gas, and 1 ppm of DPGME, a simulant of nitrogen mustard. Additionally, the CWA simulants used in the experiment have been discriminated and classified using pattern recognition techniques, such as principal component analysis and artificial neural networks"
Keywords:		"Chemical Warfare Agents/*analysis Chemistry Techniques, Analytical/methods Limit of Detection Maleates/chemistry Mechlorethamine/analogs & derivatives/analysis Nanofibers/*chemistry/ultrastructure Nanotechnology/methods Organophosphorus Compounds Oxides/c;"
Notes:		"MedlineMatatagui, D Fernandez, M J Fontecha, J Sayago, I Gracia, I Cane, C Horrillo, M C Santos, J P eng Evaluation Study Research Support, Non-U.S. Gov't Netherlands 2014/01/29 Talanta. 2014 Mar; 120:408-12. doi: 10.1016/j.talanta.2013.12.027. Epub 2013 Dec 21"