Resumen: An array comprising four Si µ -cantilevers coated with nanoporous functionalized ETS-10 crystals sub-micrometric in size has been developed as a multisensing platform for explosives recognition in vapor phase. The detection capabilities of the proposed device have been tested for common taggants such as 1-methyl-2-nitro-benzene (o-MNT)] and explosives (commercial detonation cord, a plastic tube filled with pentaerythritol tetranitrate (PETN); and C-4, a mixture of cyclotrimethylenetrinitramine (RDX), binders and plastifiers). The general strategy for the detection of explosives in vapor phase is based on the characteristic fingerprint each one produces as a result of the dissimilar chemical interactions between the ETS-10 coated µ -cantilevers and the target molecules emanating from the explosives and swept by ambient air. A portable lock-in amplifier has been implemented to exploit the truly benefits of the array in terms of portability, reduced size, and energy consumption. Such low-power electronic interface is capable of creating the excitation signal as well as obtaining the response values of four resonating µ -cantilevers simultaneously. The resulting sensing platform has successfully been applied for the o-MNT, PETN, and RDX detection at trace level.
Idioma: Inglés
DOI: 10.1109/JSEN.2015.2451732
Año: 2016
Publicado en: IEEE SENSORS JOURNAL 16, 10 (2016), 3435-3443
ISSN: 1530-437X

Financiación: info:eu-repo/grantAgreement/ES/MICINN/CTQ2010-19276
Financiación: info:eu-repo/grantAgreement/ES/MICINN/CTQ2013-49068
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/TEC2012-30802
Tipo y forma: Article (PostPrint)
Área (Departamento): Tecnologías del Medio Ambiente (Departamento de Ingeniería Química y Tecnologías del Medio Ambiente)
Área (Departamento): Electrónica (Departamento de Ingeniería Electrónica y Comunicaciones)
Área (Departamento): Física de la Materia Condensada (Departamento de Física de la Materia Condensada)
Área (Departamento): Ingeniería Química (Departamento de Ingeniería Química y Tecnologías del Medio Ambiente)


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Este artículo se encuentra en las siguientes colecciones:
Articles > Artículos por área > Física de la Materia Condensada
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Articles > Artículos por área > Ingeniería Química
Articles > Artículos por área > Electrónica

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 Record created 2016-07-14, last modified 2016-10-06


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