doi:10.1109/JSEN.2015.2451732engPina Iritia, María PilarAlmazán Román, FernandoEguizabal Alguacil, AdelaPellejero Alcázar, IsmaelUrbiztondo Castro, Miguel ÁngelSesé Monclús, JavierSantamaría Ramiro, Jesús MarcosGarcía Romeo, DanielCalvo López, Belén TeresaMedrano Marqués, Nicolás JesúsExplosives Detection by Array of Si µ -Cantilevers Coated with Titanosilicate-Type Nanoporous MaterialsART-2016-94658An 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.2016http://zaguan.unizar.es/record/5618410.1109/JSEN.2015.2451732http://zaguan.unizar.es/record/56184oai:zaguan.unizar.es:56184info:eu-repo/grantAgreement/ES/MICINN/CTQ2010-19276info:eu-repo/grantAgreement/ES/MICINN/CTQ2013-49068info:eu-repo/grantAgreement/ES/MINECO-FEDER/TEC2012-30802IEEE SENSORS JOURNAL 16, 10 (2016), 3435-3443by-nc-sahttp://creativecommons.org/licenses/by-nc-sa/3.0/es/info:eu-repo/semantics/openAccess