Explosives Detection by Array of Si µ -Cantilevers Coated with Titanosilicate-Type Nanoporous Materials

Pina Iritia, M.P. (Universidad de Zaragoza) ; Almazán, F. (Universidad de Zaragoza) ; Eguizábal, A. ; Pellejero, I. ; Urbiztondo, M. (Universidad de Zaragoza) ; Sesé, J. (Universidad de Zaragoza) ; Santamaría, J. (Universidad de Zaragoza) ; García-Romeo, D. ; Calvo, B. (Universidad de Zaragoza) ; Medrano, N. (Universidad de Zaragoza)

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

Factor impacto JCR: 2.512 (2016)

Categ. JCR: INSTRUMENTS & INSTRUMENTATION rank: 12 / 58 = 0.207 (2016) - Q1 - T1
Categ. JCR: PHYSICS, APPLIED rank: 48 / 147 = 0.327 (2016) - Q2 - T1
Categ. JCR: ENGINEERING, ELECTRICAL & ELECTRONIC rank: 85 / 260 = 0.327 (2016) - Q2 - T1

Factor impacto SCIMAGO: 0.654 - Electrical and Electronic Engineering (Q1) - Instrumentation (Q2)

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): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)
Área (Departamento): Área Electrónica (Dpto. Ingeniería Electrón.Com.)
Área (Departamento): Área Tecnologi. Medio Ambiente (Dpto. Ing.Quím.Tecnol.Med.Amb.)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)