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Towards an insight on photodamage in hair fibre by UV-light: An experimental and theoretical study

dc.contributor.authorLongo, V. M.
dc.contributor.authorda Silva Pinheiro, A.
dc.contributor.authorSambrano, J. R.
dc.contributor.authorAgnelli, J. A M
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.date.accessioned2014-05-27T11:29:47Z
dc.date.available2014-05-27T11:29:47Z
dc.date.issued2013-06-27
dc.description.abstractSynopsis: Objectives: In this research, an experimental and theoretical study was conducted to design a photodegradation mechanism of the amino acid tryptophan (Trp) in hair fibres. Methods: For the experimental research, Caucasian hair fibres were exposed to several different solar radiation simulation periods. Then, Trp and its photoproducts (N-formylkynurenine and kynurenine) were assayed by excitation and emission spectroscopic analysis. Results: For the theoretical study, reactions involved in the photodegradation of Trp were evaluated by high-level quantum mechanical calculations in a density functional theory (DFT) framework which indicate a probable Trp degradation mechanism with a minimum expended energy pathway. Conclusion: The biochemistry concerning these reactions is essentially important for a biological system where the degradation of Trp occurs. © 2013 John Wiley & Sons Ltd.en
dc.identifierhttp://dx.doi.org/10.1111/ics.12054
dc.identifier.citationInternational Journal of Cosmetic Science.
dc.identifier.doi10.1111/ics.12054
dc.identifier.issn0142-5463
dc.identifier.issn1468-2494
dc.identifier.scopus2-s2.0-84879246786
dc.identifier.urihttp://hdl.handle.net/11449/75717
dc.identifier.wosWOS:000330123300003
dc.language.isoeng
dc.relation.ispartofInternational Journal of Cosmetic Science
dc.relation.ispartofjcr1.777
dc.relation.ispartofsjr0,548
dc.relation.ispartofsjr0,548
dc.rights.accessRightsAcesso restritopt
dc.sourceScopus
dc.subjectab initio calculation
dc.subjectHair fibre
dc.subjectKynurenine
dc.subjectN-formylkynurenine
dc.subjectPhotodegradation
dc.subjectTryptophan
dc.titleTowards an insight on photodamage in hair fibre by UV-light: An experimental and theoretical studyen
dc.typeArtigopt
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dspace.entity.typePublication
relation.isOrgUnitOfPublicationbc74a1ce-4c4c-4dad-8378-83962d76c4fd
relation.isOrgUnitOfPublication.latestForDiscoverybc74a1ce-4c4c-4dad-8378-83962d76c4fd
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentBioquímica e Tecnologia - IQARpt
unesp.departmentFísico-Química - IQARpt

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