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Luminescent CdSe Quantum Dot Arrays for Rapid Sensing of Explosive Taggants

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Luminescent CdSe Quantum Dot Arrays for Rapid Sensing of Explosive Taggants

dc.contributor.author	Aznar Gadea, Eduardo
dc.contributor.author	Rodríguez Canto, Pedro J.
dc.contributor.author	Albert Sánchez, Sandra
dc.contributor.author	Martínez Pastor, Juan Pascual
dc.contributor.author	Abargues López, Rafael
dc.date.accessioned	2023-06-14T06:40:13Z
dc.date.available	2023-06-15T04:45:05Z
dc.date.issued	2022	es_ES
dc.identifier.citation	Aznar-Gadea, E., Rodriguez-Canto, P. J., Sánchez, S. A., Martinez-Pastor, J. P., & Abargues, R. (2022). Luminescent CdSe Quantum Dot Arrays for Rapid Sensing of Explosive Taggants. ACS Applied Nano Materials, 5 (5), 6717-6725.	es_ES
dc.identifier.uri	https://hdl.handle.net/10550/87889
dc.description.abstract	Chemical sensors based on fluorescent quantum dots have attracted intense interest because of their excellent optical and electronic properties compared to the routinely employed fluorescent organic dyes. This study reports a CdSe QD-polymer-based luminescent chemosensor, which is based on an array containing either green-emitting or red-emitting CdSe QDs embedded in polycaprolactone as a polymer host matrix. We evaluate the sensing capability of the nanocomposites by exposing both sensors to vapors of explosive taggants, explosive-like molecules, and some common solvents. Both nanocomposites exhibit a very fast response time of <30 s. The limit of detection of the sensors for 3-nitrotoluene, 4-nitrotoluene 2,3-dimethyl-2,3-dinitrobutane, and picric acid was found to be 0.055, 2.7, 0.7 and 916.4 ng, respectively. The sensor array constitutes a powerful tool to discriminate between explosive taggants (3-nitrotoluene, 4-nitrotoluene, and 2,3-dimethyl-2,3-dinitrobutane) and shows specific molecular recognition toward picric acid. This type of miniaturized luminescent QD-based nanocomposites might form the basis of a sensing platform technology to perform effective chemical detection and identification of explosive taggants preblast and postblast.	es_ES
dc.language.iso	en	es_ES
dc.publisher	ACS	es_ES
dc.subject	quantum dots	es_ES
dc.subject	sensor	es_ES
dc.subject	multichannel	es_ES
dc.subject	explosive taggant	es_ES
dc.subject	3-nitrotoluene	es_ES
dc.subject	nanocomposite	es_ES
dc.subject	fluorescence	es_ES
dc.title	Luminescent CdSe Quantum Dot Arrays for Rapid Sensing of Explosive Taggants	es_ES
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::CIENCIAS TECNOLÓGICAS	es_ES
dc.identifier.doi	10.1021/acsanm.2c00743	es_ES
dc.accrualmethod	CI	es_ES
dc.embargo.terms	0 days	es_ES
dc.type.hasVersion	VoR	es_ES
dc.rights.accessRights	open access	es_ES