Organic acids and protein compounds causing the photoluminescence properties of natural rubber membranes and the quenching phenomena from Au nanoparticle incorporation

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dc.contributor.authorCabrera, Flavio C. [UNESP]
dc.contributor.authorAgostini, Deuber L. S. [UNESP]
dc.contributor.authorSantos, Renivaldo J. dos [UNESP]
dc.contributor.authorGuimaraes, Francisco E. G.
dc.contributor.authorGuerrero, Ariel R.
dc.contributor.authorAroca, Ricardo F.
dc.contributor.authorJob, Aldo E. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniv Windsor
dc.date.accessioned2015-03-18T15:52:32Z
dc.date.available2015-03-18T15:52:32Z
dc.date.issued2014-12-01
dc.description.abstractNatural rubber membranes were fabricated using latex from Hevea brasiliensis trees (clone RRIM 600) by casting, and controlling the time and temperature of thermal treatment. Three temperatures were used: 65, 80 and 120 degrees C and the corresponding annealing times of 6, 8, 10 and 12h. The centrifugation of the latex produces the constituent phases: solid rubber (F1), serum or protein components (F2) and bottom fraction (F3). The photoluminescence properties could be correlated with organic acid components of latex. Natural rubber membranes were used as the active substrate (reducing agent) for the incorporation of colloidal Au nanoparticles synthesized by in situ reduction at different times. The intensity of photoluminescence bands assigned to the natural rubber decreases with the increase in amount of nanoparticles present on the membrane surface. It can be assumed that Au nanoparticles may be formed by reduction of the Au cation reacting with functional groups that are directly related to photoluminescence properties. However, the quenching of fluorescence may be attributed to the formation of a large amount of metal nanostructures on the natural rubber surface. Copyright (c) 2014 John Wiley & Sons, Ltd.en
dc.description.affiliationUNESP, Fac Ciencias & Tecnol, Dept Fis Quim & Biol, BR-19060080 Presidente Prudente, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Inst Fis, Sao Carlos, SP, Brazil
dc.description.affiliationUniv Windsor, Mat & Surface Sci Grp, Windsor, ON N9B 3P4, Canada
dc.description.affiliationUnespUNESP, Fac Ciencias & Tecnol, Dept Fis Quim & Biol, BR-19060080 Presidente Prudente, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipINEO
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdFAPESP: 07/04952-5
dc.description.sponsorshipIdFAPESP: 10/03282-9
dc.format.extent1047-1052
dc.identifierhttp://dx.doi.org/10.1002/bio.2657
dc.identifier.citationLuminescence. Hoboken: Wiley-blackwell, v. 29, n. 8, p. 1047-1052, 2014.
dc.identifier.doi10.1002/bio.2657
dc.identifier.issn1522-7235
dc.identifier.urihttp://hdl.handle.net/11449/116177
dc.identifier.wosWOS:000346466800012
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofLuminescence
dc.relation.ispartofjcr1.671
dc.relation.ispartofsjr0,396
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectNatural rubber (NR)en
dc.subjectUV-Vis Spectroscopyen
dc.subjectcasting methoden
dc.subjectphotoluminescence spectroscopyen
dc.subjectlatexen
dc.titleOrganic acids and protein compounds causing the photoluminescence properties of natural rubber membranes and the quenching phenomena from Au nanoparticle incorporationen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell
unesp.author.lattes6475585105456744[7]
unesp.author.orcid0000-0002-0676-7064[5]
unesp.author.orcid0000-0002-1979-8257[7]
unesp.author.orcid0000-0001-7924-7089[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Tecnologia, Presidente Prudentept

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