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Gold nanostructure-related non-plasmon resonance absorption band as a fingerprint of ortho-alkyl substituted phenolic compounds

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dc.contributor.authorSilvia Dortez
dc.contributor.authorMaria Cristina González
dc.contributor.authorGonzález Crevillén, Agustín
dc.contributor.authorAlberto Escarpa
dc.date.accessioned2024-10-03T11:44:33Z
dc.date.available2024-10-03T11:44:33Z
dc.date.issued2021-08-29
dc.description.abstractA systematic study for correlating the chemical structure of phenolic compounds with their capacity to form gold nanoparticles was carried out. Two groups of phenolic compounds were selected: one group with a substituent with different size at ortho position respect to hydroxyl group (phenol, o-cresol, 2-ethylphenol, 2-iso-propylphenol, 2-tert-butylphenol and 2-methoxyphenol); and the second group consists of phenolic compounds with the same substituent (methyl) at different positions respect to hydroxyl group (o-cresol, m-cresol and p-cresol). In addition to the characteristic gold nanoparticles (AuNPs) formation band at 550 nm obtained for all the structures of phenolic compounds studied, ortho-alkyl substituted yielded selectively a metastable band at 400 nm, due to gold nanoclusters (AuNCs) formation. We hypothesized that these specific phenolic compounds can temporally stabilize AuNCs with number of Au atoms ranging from 3 to 41. This new band was proposed for rapid screening of these phenolics with promising results, paving the way to new and more selective colorimetric assay for phenolic compounds determination.en
dc.description.versionversión publicada
dc.identifier.citationSilvia Dortez, Maria Cristina González, Agustín G. Crevillen, Alberto Escarpa, Gold nanostructure-related non-plasmon resonance absorption band as a fingerprint of ortho-alkyl substituted phenolic compounds, Microchemical Journal, Volume 171, 2021, 106788, ISSN 0026-265X, https://doi.org/10.1016/j.microc.2021.106788
dc.identifier.doihttps://doi.org/10.1016/j.microc.2021.106788
dc.identifier.issn0026-265X; e-ISSN:1095-9149
dc.identifier.urihttps://hdl.handle.net/20.500.14468/23884
dc.journal.titleMicrochemical Journal
dc.journal.volume171
dc.language.isoen
dc.publisherElsevier
dc.relation.centerFacultades y escuelas::Facultad de Ciencias
dc.relation.departmentCiencias Analíticas
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject23 Química
dc.subject.keywordsPhenolic compoundsen
dc.subject.keywordsAntioxidantsen
dc.subject.keywordsGold nanoclusteren
dc.subject.keywordsGold nanoparticleen
dc.subject.keywordsIsomer analysisen
dc.titleGold nanostructure-related non-plasmon resonance absorption band as a fingerprint of ortho-alkyl substituted phenolic compoundsen
dc.typeartículoes
dc.typejournal articleen
dspace.entity.typePublication
person.familyNameGonzález Crevillén
person.givenNameAgustín
person.identifier.orcid0000-0002-4470-6502
relation.isAuthorOfPublication0f39284a-d95a-443a-bb2e-21297ec40b76
relation.isAuthorOfPublication.latestForDiscovery0f39284a-d95a-443a-bb2e-21297ec40b76
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