Highly sensitive SERS quantification of organophosphorous chemical warfare agents: a major step towards the real time sensing in the gas phase

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dc.contributor.authorLafuente Adiego, Marta
dc.contributor.authorPellejero, Ismael
dc.contributor.authorSebastián, Víctor
dc.contributor.authorUrbiztondo, Miguel A.
dc.contributor.authorMallada, Reyes
dc.contributor.departmentInstitute for Advanced Materials and Mathematics - INAMAT2en
dc.date.accessioned2020-11-11T10:25:01Z
dc.date.available2020-11-11T10:25:01Z
dc.date.issued2018
dc.description.abstractA surface-enhanced Raman scattering (SERS)-based sensor was developed for the label-free real-time gas phase detection of dimethyl methylphosphonate (DMMP); a surrogate molecule of the G-series nerve agents which are of particular concern due to its extreme toxicity, persistence and previous deployment. The SERS platform was designed using simple elements (Au nano-particles) coated with a citrate layer, and a self-assembly procedure that yields near- optimum distances among the nanoparticles. The citrate coating acts as an effective trap of the target molecules on the immediate vicinity of the Au nanoparticle surface under ambient conditions by reversible hydrogen bonding type interactions. For the first time, we have been able to detect sub-ppm concentrations of DMMP in gas phase (130 parts-per-billion), as might be found on potential emergency scenarios. The high sensitivity, simple preparation and reusability of the SERS platforms developed in this work open up the way for immediate detection of chemical warfare agents in realistic scenarios.en
dc.description.sponsorshipFinancial support from MICINN (CTQ2013-49068-C2-1-R; CTQ2016-79419-R) and CUD (UZCUD2016-TEC-07) is gratefully acknowledged. CIBER-BBN is an initiative funded by the VI National R&D&i Plan 2008-2011 financed by the Instituto de Salud Carlos III with assistance from the European Regional Development Fund.en
dc.format.extent29 p.
dc.format.mimetypeapplication/pdfen
dc.identifier.doi10.1016/j.snb.2018.04.058
dc.identifier.issn0925-4005
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/38641
dc.language.isoengen
dc.publisherElsevieren
dc.relation.ispartofSensors and Actuators B: Chemical, 2018, 267, 457-466en
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO//CTQ2013-49068-C2-1-R/ES/
dc.relation.projectIDinfo:eu-repo/grantAgreement/ES/1PE/CTQ2016-79419-R/
dc.relation.publisherversionhttps://doi.org/10.1016/j.snb.2018.04.058
dc.rights© 2018 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0en
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectSERSen
dc.subjectNeurotoxic agentsen
dc.subjectGas phaseen
dc.subjectReal time detectionen
dc.subjectSub-ppm limit of detectionen
dc.subjectFacile and reproducible fabricationen
dc.titleHighly sensitive SERS quantification of organophosphorous chemical warfare agents: a major step towards the real time sensing in the gas phaseen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dspace.entity.typePublication
relation.isAuthorOfPublication2d1d1ea5-299e-4e05-82d5-d22ef91cdb80
relation.isAuthorOfPublicationb4cb3430-7b46-428d-8714-7d9af415aebf
relation.isAuthorOfPublication.latestForDiscoveryb4cb3430-7b46-428d-8714-7d9af415aebf

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