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Magnetic properties of synthetic eumelanin - Preliminary results

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dc.contributor.authorCano, M. E.
dc.contributor.authorCastaneda-Priego, R.
dc.contributor.authorGil-Villegas, A.
dc.contributor.authorSosa, M. A.
dc.contributor.authorSchio, P.
dc.contributor.authorde Oliveira, A. J. A.
dc.contributor.authorChen, F.
dc.contributor.authorBaffa, O.
dc.contributor.authorGraeff, Carlos Frederico de Oliveira [UNESP]
dc.contributor.institutionUniv Guadalajara
dc.contributor.institutionUniv Guanajuato
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:26:22Z
dc.date.available2014-05-20T13:26:22Z
dc.date.issued2008-05-01
dc.description.abstractWe report an experimental and theoretical study of magnetic properties of synthetic eumelanin. The magnetization curves are determined by using both a vibrating sample magnetometer and a superconducting quantum interferometer device in an extended range of magnetic fields ranging from -10 kOe to 10 kOe at different temperatures. We find that the eumelanin magnetization can be qualitatively explained in terms of a simple model of dipolar spheres with an intrinsic magnetic moment. The latter one is experimentally measured by using X-band electron paramagnetic resonance. Our findings indicate that synthetic melanins are superparamagnetic.en
dc.description.affiliationUniv Guadalajara, Ctr Univ Cienega, Ocotlan, Jalisco, Mexico
dc.description.affiliationUniv Guanajuato, Inst Fis, Guanajuato, Mexico
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Fis, BR-13560 São Carlos, Brazil
dc.description.affiliationUniv São Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, Ribeirao Preto, Brazil
dc.description.affiliationUniv Estadual Paulista, FC, Dept Fis, Bauru, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, FC, Dept Fis, Bauru, Brazil
dc.format.extent627-631
dc.identifierhttp://dx.doi.org/10.1111/j.1751-1097.2008.00302.x
dc.identifier.citationPhotochemistry and Photobiology. Augusta: Amer Soc Photobiology, v. 84, n. 3, p. 627-631, 2008.
dc.identifier.doi10.1111/j.1751-1097.2008.00302.x
dc.identifier.issn0031-8655
dc.identifier.orcid0000-0003-0162-8273
dc.identifier.urihttp://hdl.handle.net/11449/8487
dc.identifier.wosWOS:000255518400013
dc.language.isoeng
dc.publisherAmer Soc Photobiology
dc.relation.ispartofPhotochemistry and Photobiology
dc.relation.ispartofjcr2.214
dc.relation.ispartofsjr0,591
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleMagnetic properties of synthetic eumelanin - Preliminary resultsen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderAmer Soc Photobiology
dspace.entity.typePublication
unesp.author.lattes5268607684223281[9]
unesp.author.orcid0000-0003-0162-8273[9]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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Bauru - FC - Faculdade de Ciências