Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/49045
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Conceição, Rafaela | por |
dc.contributor.author | Hungerford, Graham | por |
dc.contributor.author | Costa, Susana P. G. | por |
dc.contributor.author | Gonçalves, M. Sameiro T. | por |
dc.date.accessioned | 2018-01-05T14:29:29Z | - |
dc.date.available | 2018-01-05T14:29:29Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | R . Conceição, G. Hungerford, S. P. G. Costa, M. S. T. Gonçalves, “Photolytic release of bioactive carboxylic acids from fused pyran conjugates”, Dyes Pigments, 2018, 148, 368-379. | por |
dc.identifier.issn | 0143-7208 | por |
dc.identifier.uri | https://hdl.handle.net/1822/49045 | - |
dc.description.abstract | New ester cages bearing the coumarin (2H-benzopyran-2-one) skeleton with extended π-systems as phototriggers, for glycine and β-alanine, as models of carboxylic acid bifunctional molecules with biological relevance, were evaluated under photolysis conditions at 254, 300, 350 and 419 nm of irradiation in a RPR-100 photochemical reactor. The processes were followed by HPLC-UV detection and 1H NMR with collection of kinetic data. The results showed a correlation between the photolysis efficiency and the increasing extension of the conjugation for both glycine and β-alanine, showing that the 7-aminocoumarin afforded the best results at all wavelengths tested. From a study of the time-resolved fluorescence behaviour, these compounds were also found to exhibit more complex fluorescence decay kinetics. This was attributed to the presence of conjugated and non-conjugated coumarin species. | por |
dc.description.sponsorship | Thanks are due to Fundação para a Ciência e Tecnologia (FCT) and FEDER (European Fund for Regional Development)-COMPETE-QREN-EU for financial support through the Chemistry Research Centre of the University of Minho (Ref. UID/QUI/00686/2013 and UID/ QUI/0686/2016). The NMR spectrometer Bruker Avance III 400 is part of the National NMR Network and was purchased within the framework of the National Program for Scientific Re-equipment, contract REDE/1517/RMN/2005 with funds from POCI 2010 (FEDER) and FCT. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | Phototriggers | por |
dc.subject | Caging groups | por |
dc.subject | Neurotransmitters | por |
dc.subject | Coumarins | por |
dc.subject | Photolysis | por |
dc.title | Photolytic release of bioactive carboxylic acids from fused pyran conjugates | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://doi.org/10.1016/j.dyepig.2017.09.023 | por |
oaire.citationStartPage | 368 | por |
oaire.citationEndPage | 379 | por |
oaire.citationVolume | 148 | por |
dc.identifier.eissn | 1873-3743 | por |
dc.identifier.doi | 10.1016/j.dyepig.2017.09.023 | por |
dc.subject.fos | Ciências Naturais::Ciências Químicas | por |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Dyes and Pigments | por |
Aparece nas coleções: | CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Photolytic release of bioactive carboxylic acids from fused pyran conjugates.pdf | 2,02 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons