β-Ta2O5 thin film for implant surface modification triggers superior anti-corrosion performance and cytocompatibility of titanium

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorTribocorrosion and Nanomedicine (IBTN)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorCollege of Dentistry-
Autor(es): dc.contributorNorthwestern University-
Autor(es): dc.creatorBeline, Thamara-
Autor(es): dc.creatorde Almeida, Amanda B.-
Autor(es): dc.creatorAzevedo Neto, Nilton F. [UNESP]-
Autor(es): dc.creatorMatos, Adaias O.-
Autor(es): dc.creatorRicomini-Filho, Antônio P.-
Autor(es): dc.creatorSukotjo, Cortino-
Autor(es): dc.creatorSmeets, Paul J.M.-
Autor(es): dc.creatorda Silva, José H.D. [UNESP]-
Autor(es): dc.creatorNociti, Francisco H.-
Autor(es): dc.creatorBarão, Valentim A.R.-
Data de aceite: dc.date.accessioned2022-02-22T00:25:21Z-
Data de disponibilização: dc.date.available2022-02-22T00:25:21Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.apsusc.2020.146326-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/198732-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/198732-
Descrição: dc.descriptionIn this study, β-tantalum oxide (β-Ta2O5) thin film was synthesized via magnetron sputtering to improve the surface properties, cytocompatibility and electrochemical stability of titanium. X-ray diffraction analysis confirmed a crystalline orthorhombic phase of Ta2O5 film on the β-Ta2O5 experimental surface. A granular structure with a complex and hierarchical nature was demonstrated by atomic force microscopy. Ta2O5-treated surfaces exhibited greater roughness and hydrophilicity compared with untreated titanium discs (control). Enhanced electrochemical stability in simulated body fluid (pH 7.4) was noted for Ta2O5-treated surfaces wherein higher values of charge transfer resistance, nobler corrosion potential, and lower capacitance, corrosion current density, and corrosion rate values were observed vs untreated control. Real-time monitoring of albumin and fibrinogen proteins adsorption by an electrochemical quartz crystal microbalance disclosed similar protein interactions for control and Ta2O5-treated discs, with higher fibrinogen adsorption rates for Ta2O5-treated surfaces. Cell culture assays (MC3T3-E1 cells) demonstrated that Ta2O5-treated discs featured greater in vitro mineral nodule formation, normal cell morphology and spreading, and increased mRNA levels of runt-related transcription factor 2 (Runx-2), osteocalcin (Ocn), and collagen-1 (Col-1). Therefore, it can be concluded that β-Ta2O5 thin films may be considered a promising strategy to trigger superior long-term stability and biological properties of titanium implants.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionW. M. Keck Foundation-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionMaterials Research Science and Engineering Center, Harvard University-
Descrição: dc.descriptionUniversity of Campinas (UNICAMP) Piracicaba Dental School Department of Prosthodontics and Periodontics, Av. Limeira, 901-
Descrição: dc.descriptionInstitute of Biomaterials Tribocorrosion and Nanomedicine (IBTN)-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Department of Physics, Av. Eng. Luís Edmundo C. Coube, 14-01-
Descrição: dc.descriptionUniversity of Campinas (UNICAMP) Piracicaba Dental School Department of Physiological Science, Av. Limeira, 901-
Descrição: dc.descriptionUniversity of Illinois at Chicago College of Dentistry Department of Restorative Dentistry, 801 S. Paulina-
Descrição: dc.descriptionDepartment of Materials Science and Engineering Northwestern University-
Descrição: dc.descriptionNUANCE Center Northwestern University-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Department of Physics, Av. Eng. Luís Edmundo C. Coube, 14-01-
Descrição: dc.descriptionFAPESP: 2016/07269-3-
Descrição: dc.descriptionFAPESP: 2016/11470-6-
Descrição: dc.descriptionFAPESP: 2017/18916-2-
Descrição: dc.descriptionMaterials Research Science and Engineering Center, Harvard University: NSF DMR-1720139-
Idioma: dc.languageen-
Relação: dc.relationApplied Surface Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiomaterials-
Palavras-chave: dc.subjectCorrosion-
Palavras-chave: dc.subjectDental implants-
Palavras-chave: dc.subjectMagnetron sputtering-
Palavras-chave: dc.subjectProtein adsorption-
Palavras-chave: dc.subjectTantalum oxide-
Título: dc.titleβ-Ta2O5 thin film for implant surface modification triggers superior anti-corrosion performance and cytocompatibility of titanium-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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