Zinc oxide surface functionalization and related effects on corrosion resistance of titanium implants

dc.contributor.authorTrino, Luciana D. [UNESP]
dc.contributor.authorDias, Leonardo F.G. [UNESP]
dc.contributor.authorAlbano, Luiz G.S. [UNESP]
dc.contributor.authorBronze-Uhle, Erika S. [UNESP]
dc.contributor.authorRangel, Elidiane C. [UNESP]
dc.contributor.authorGraeff, Carlos F.O. [UNESP]
dc.contributor.authorLisboa-Filho, Paulo N. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:35:03Z
dc.date.available2018-12-11T17:35:03Z
dc.date.issued2018-03-01
dc.description.abstractImportant clinical concerns in orthopedics and dental implantology are associated with a significant release of titanium (Ti) metal ions and debris due to the low corrosion resistance of this material. Chemical modifications on Ti surfaces have been performed in order to minimize effects of corrosion. In this contribution, zinc oxide (ZnO) thin films were deposited onto Ti surfaces and functionalized with four different organic bifunctional molecules in order to increase the corrosion resistance. SEM and XPS indicated the formation of nanostructured ZnO thin film with hydroxyl groups available for covalent functionalization. The adhesion mechanism analyzed by XPS suggest that the attachment on ZnO occurs by carboxylic acid, silane, thiol and hydroxyl groups for 4-aminophenylpropionic acid (APPA), 3-aminopropyltrimetoxysilane (APTMS), 3-mercaptopropionic acid (MPA), and polyethylene glycol (PEG) molecules. Electrochemical analysis for the functionalized ZnO specimens with APPA showed noble open circuit potentials (−0.2 V) and significant decrease in the corrosion current density (5.3 × 10−7 A/cm2) when compared to the values obtained for pristine Ti (−0.56 V and 2.3 × 10−6 A/cm2), indicating a promising material for applications in biomedical fields.en
dc.description.affiliationSão Paulo State University (Unesp) School of Sciences
dc.description.affiliationSão Paulo State University (Unesp) Institute of Science and Technology
dc.description.affiliationUnespSão Paulo State University (Unesp) School of Sciences
dc.description.affiliationUnespSão Paulo State University (Unesp) Institute of Science and Technology
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2013/07296-2
dc.description.sponsorshipIdFAPESP: 2013/09963-6
dc.description.sponsorshipIdFAPESP: 2014/01713-3
dc.description.sponsorshipIdFAPESP: 2014/20471-0
dc.format.extent4000-4008
dc.identifierhttp://dx.doi.org/10.1016/j.ceramint.2017.11.195
dc.identifier.citationCeramics International, v. 44, n. 4, p. 4000-4008, 2018.
dc.identifier.doi10.1016/j.ceramint.2017.11.195
dc.identifier.file2-s2.0-85036534302.pdf
dc.identifier.issn0272-8842
dc.identifier.lattes1353862414532005
dc.identifier.orcid0000-0002-7734-4069
dc.identifier.scopus2-s2.0-85036534302
dc.identifier.urihttp://hdl.handle.net/11449/179405
dc.language.isoeng
dc.relation.ispartofCeramics International
dc.relation.ispartofsjr0,784
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBiomaterials
dc.subjectCorrosion
dc.subjectFunctional materials
dc.subjectSurface functionalization
dc.subjectZinc oxide
dc.titleZinc oxide surface functionalization and related effects on corrosion resistance of titanium implantsen
dc.typeArtigo
unesp.author.lattes1353862414532005[7]
unesp.author.lattes5268607684223281[6]
unesp.author.orcid0000-0002-7734-4069[7]
unesp.author.orcid0000-0003-0162-8273[6]

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