77240 20210820090343.0 doi 10.1016/j.snb.2018.04.058 sideral 105876 ART-2018-105876 eng Lafuente, M. (orcid)0000-0003-2660-3726 Highly sensitive SERS quantification of organophosphorous chemical warfare agents: A major step towards the real time sensing in the gas phase 2018 Access copy available to the general public Unrestricted A 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. info:eu-repo/grantAgreement/ES/MICINN/CTQ2013-49068-C2-1-R info:eu-repo/grantAgreement/ES/MINECO/CTQ2016-79419-R info:eu-repo/grantAgreement/ES/UZ/JIUZ-2016-TEC-07 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 6.393 2018 CHEMISTRY, ANALYTICAL 6 / 84 = 0.071 2018 Q1 T1 INSTRUMENTS & INSTRUMENTATION 2 / 61 = 0.033 2018 Q1 T1 ELECTROCHEMISTRY 4 / 26 = 0.154 2018 Q1 T1 1.389 2018 Condensed Matter Physics 2018 Q1 Electrical and Electronic Engineering 2018 Q1 Electronic, Optical and Magnetic Materials 2018 Q1 Surfaces, Coatings and Films 2018 Q1 Materials Chemistry 2018 Q1 Metals and Alloys 2018 Q1 Instrumentation 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Pellejero, I. (orcid)0000-0002-8448-7543 Sebastián, V. Universidad de Zaragoza (orcid)0000-0002-6873-5244 Urbiztondo, M.A. Universidad de Zaragoza (orcid)0000-0002-4931-1358 Mallada, R. Universidad de Zaragoza (orcid)0000-0002-4758-9380 Pina, M.P. Universidad de Zaragoza (orcid)0000-0001-9897-6527 Santamaría, J. Universidad de Zaragoza (orcid)0000-0002-8701-9745 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 5005 790 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Tecnologi. Medio Ambiente 267 (2018), 457-466 Sens. actuators, B, Chem. SENSORS AND ACTUATORS B-CHEMICAL 0925-4005 1630227 http://zaguan.unizar.es/record/77240/files/texto_completo.pdf Postprint 89545 http://zaguan.unizar.es/record/77240/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:77240 articulos driver 2021-08-20-08:36:18 ARTICLE