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

Registro completo de metadados
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorTrino, Luciana D.-
Autor(es): dc.creatorDias, Leonardo F.G.-
Autor(es): dc.creatorAlbano, Luiz G.S.-
Autor(es): dc.creatorBronze-Uhle, Erika S.-
Autor(es): dc.creatorRangel, Elidiane C.-
Autor(es): dc.creatorGraeff, Carlos F.O.-
Autor(es): dc.creatorLisboa-Filho, Paulo N.-
Data de aceite: dc.date.accessioned2021-03-11T00:56:13Z-
Data de disponibilização: dc.date.available2021-03-11T00:56:13Z-
Data de envio: dc.date.issued2018-12-11-
Data de envio: dc.date.issued2018-12-11-
Data de envio: dc.date.issued2018-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.ceramint.2017.11.195-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/179405-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/179405-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionProcesso FAPESP: 2013/07296-2-
Descrição: dc.descriptionProcesso FAPESP: 2013/09963-6-
Descrição: dc.descriptionProcesso FAPESP: 2014/01713-3-
Descrição: dc.descriptionProcesso FAPESP: 2014/20471-0-
Descrição: dc.descriptionImportant 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.-
Formato: dc.format4000-4008-
Idioma: dc.languageen-
Relação: dc.relationCeramics International-
Relação: dc.relation0,784-
Direitos: dc.rightsopenAccess-
Palavras-chave: dc.subjectBiomaterials-
Palavras-chave: dc.subjectCorrosion-
Palavras-chave: dc.subjectFunctional materials-
Palavras-chave: dc.subjectSurface functionalization-
Palavras-chave: dc.subjectZinc oxide-
Título: dc.titleZinc oxide surface functionalization and related effects on corrosion resistance of titanium implants-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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