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Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/197928
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dc.contributor.authorGomes, Liliana J.-
dc.contributor.authorMoreira, Tiago-
dc.contributor.authorRodríguez Raurell, Laura-
dc.contributor.authorMoro, Artur J.-
dc.date.accessioned2023-05-12T14:32:55Z-
dc.date.issued2022-
dc.identifier.issn0143-7208-
dc.identifier.urihttp://hdl.handle.net/2445/197928-
dc.description.abstractThe design and full characterization of new fluorescent chemosensors for Cu2+ is herein presented. The structure of the sensors is based on a chalcone backbone as the chromophoric unit, with di-(2-picolyl)amine (DPA) as a receptor moiety. Two systems, bearing one or two chalcone-DPA units, were synthesized and fully characterized. UV-Vis titrations with several metal ions were performed and both chemosensors exhibited a strong hypsochromic shift in the absorption spectra upon Cu2+ addition, indicating a higher selectivity for this metal over other divalent cations. Additionally, fluorescent spectra recorded in the same conditions revealed a stronger quenching effect in the presence of Cu2+, even in the presence of other metal cations, with association constants above 106 M−1 and detection limits below the micromolar level for both chemosensors. Paper test-strips with one of the chemosensors were prepared to attest its possible application for detecting copper in aqueous samples.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.relation.isformatofVersió postprint del document publicat a: https://doi.org/10.1016/j.dyepig.2021.109845-
dc.relation.ispartofDyes and Pigments, 2022-
dc.relation.urihttps://doi.org/10.1016/j.dyepig.2021.109845-
dc.rightscc-by-nc-nd (c) Elsevier B.V., 2022-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/-
dc.sourceArticles publicats en revistes (Química Inorgànica i Orgànica)-
dc.subject.classificationEnginyeria química-
dc.subject.classificationDetectors químics-
dc.subject.classificationCoure-
dc.subject.otherChemical engineering-
dc.subject.otherChemical detectors-
dc.subject.otherCopper-
dc.titleChalcone-based fluorescent chemosensors as new tools for detecting Cu2+ ions-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/acceptedVersion-
dc.identifier.idgrec731236-
dc.date.updated2023-05-12T14:32:55Z-
dc.rights.accessRightsinfo:eu-repo/semantics/embargoedAccess-
dc.embargo.lift2024-12-31-
dc.date.embargoEndDateinfo:eu-repo/date/embargoEnd/2024-12-31-
Appears in Collections:Articles publicats en revistes (Química Inorgànica i Orgànica)
Articles publicats en revistes (Institut de Nanociència i Nanotecnologia (IN2UB))

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