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dc.contributor.authorde Almeida Filho, Edson [UNESP]
dc.contributor.authorFraga, Alexandre F.
dc.contributor.authorBini, Rafael A. [UNESP]
dc.contributor.authorGuastaldi, Antonio Carlos [UNESP]
dc.date.accessioned2014-05-20T15:34:22Z
dc.date.available2014-05-20T15:34:22Z
dc.date.issued2011-03-01
dc.identifierhttp://dx.doi.org/10.1016/j.apsusc.2010.12.056
dc.identifier.citationApplied Surface Science. Amsterdam: Elsevier B.V., v. 257, n. 10, p. 4575-4580, 2011.
dc.identifier.issn0169-4332
dc.identifier.urihttp://hdl.handle.net/11449/42523
dc.description.abstractApatite coating was applied on titanium surfaces modified by Nd:YVO4 laser ablations with different energy densities (fluency) at ambient pressure and atmosphere. The apatites were deposited by biomimetic method using a simulated body fluid solution that simulates the salt concentration of bodily fluids. The titanium surfaces submitted to the fast melting and solidification processes (ablation) were immersed in the simulated body fluid solution for four days. The samples were divided into two groups, one underwent heat treatment at 600 degrees C and the other dried at 37 degrees C. For the samples treated thermally the diffractograms showed the formation of a phase mixture, with the presence of the hydroxyapatite, tricalcium phosphate, calcium deficient hydroxyapatite, carbonated hydroxyapatite and octacalcium phosphate phases. For the samples dried only the formation of the octacalcium phosphate and hydroxyapatite phases was verified. The infrared spectra show bands relative to chemical bonds confirmed by the diffraction analyses. The coating of both the samples with and without heat treatment present dense morphology and made up of a clustering of spherical particles ranging from 5 to 20 mu m. Based on the results we infer that the modification of implant surfaces employing laser ablations leads to the formation of oxides that help the formation of hydroxyapatite without the need of a heat treatment. (C) 2010 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent4575-4580
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofApplied Surface Science
dc.sourceWeb of Science
dc.subjectLaser ablationen
dc.subjectApatitesen
dc.subjectTitaniumen
dc.subjectBiomimetic methoden
dc.titleBioactive coating on titanium implants modified by Nd:YVO4 laseren
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.description.affiliationUniv Estadual Paulista UNESP, Inst Quim, Grp Biomat, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Engn Mat DEMa, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista UNESP, Inst Quim, Grp Biomat, BR-14800900 Araraquara, SP, Brazil
dc.identifier.doi10.1016/j.apsusc.2010.12.056
dc.identifier.wosWOS:000286808300006
dc.rights.accessRightsAcesso aberto
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
dc.identifier.fileWOS000286808300006.pdf
dc.identifier.lattes6443430122330366
unesp.author.lattes6443430122330366[4]
unesp.author.orcid0000-0002-6433-3555[4]
dc.relation.ispartofjcr4.439
dc.relation.ispartofsjr1,093
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