Improved tribocorrosion performance of bio-functionalized TiO2 nanotubes under two-cycle sliding actions in artificial saliva
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jmbbm.2018.01.038 http://hdl.handle.net/11449/175828 |
Resumo: | After insertion into bone, dental implants may be subjected to tribocorrosive conditions resulting in the release of metallic ions and solid wear debris, which can induce to peri-implant inflammatory reactions accompanied by bone loss, and ultimately implant loosening. Despite the promising ability of TiO2 nanotubes (NTs) to improve osseointegration and avoid infection-related failures, the understanding of their degradation under the simultaneous action of wear and corrosion (tribocorrosion) is still very limited. This study aims, for the first time, to study the tribocorrosion behavior of bio-functionalized TiO2 NTs submitted to two-cycle sliding actions, and compare it with conventional TiO2 NTs. TiO2 NTs grown by anodization were doped with bioactive elements, namely calcium (Ca), phosphorous (P), and zinc (Zn), through reverse polarization anodization treatments. Characterization techniques such as scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and scanning transmission electron microscopy (STEM), were used to characterize the films. Tribocorrosion tests were carried out in artificial saliva (AS) by applying two cycles of reciprocating sliding actions. The open circuit potential (OCP) was monitored before, during, and after both cycles of sliding, during which the coefficient of friction (COF) was calculated. The resulting wear scars were analyzed by SEM and EDS, and wear volume measurements were performed by 2D profilometry. Finally, the mechanical features of TiO2 NTs were accessed by nanoindentation. The results show that bio-functionalized TiO2 NTs display an enhanced tribocorrosion performance, ascribed to the growth of a nano-thick oxide film at Ti/TiO2 NTs interface, which significantly increased their adhesion strength to the substrate and consequently their hardness. Furthermore, it was discovered that during tribo-electrochemical solicitations, the formation of a P-rich tribofilm takes place, which grants both electrochemical protection and resistance to mechanical wear. This study provides fundamental and new insights for the development of multifunctional TiO2 NTs with long-term biomechanical stability and improved clinical outcomes. |
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Improved tribocorrosion performance of bio-functionalized TiO2 nanotubes under two-cycle sliding actions in artificial salivaBio-functionalizationMechanical propertiesTiO2 nanotubesTribocorrosionTwo-cycle-slidingAfter insertion into bone, dental implants may be subjected to tribocorrosive conditions resulting in the release of metallic ions and solid wear debris, which can induce to peri-implant inflammatory reactions accompanied by bone loss, and ultimately implant loosening. Despite the promising ability of TiO2 nanotubes (NTs) to improve osseointegration and avoid infection-related failures, the understanding of their degradation under the simultaneous action of wear and corrosion (tribocorrosion) is still very limited. This study aims, for the first time, to study the tribocorrosion behavior of bio-functionalized TiO2 NTs submitted to two-cycle sliding actions, and compare it with conventional TiO2 NTs. TiO2 NTs grown by anodization were doped with bioactive elements, namely calcium (Ca), phosphorous (P), and zinc (Zn), through reverse polarization anodization treatments. Characterization techniques such as scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and scanning transmission electron microscopy (STEM), were used to characterize the films. Tribocorrosion tests were carried out in artificial saliva (AS) by applying two cycles of reciprocating sliding actions. The open circuit potential (OCP) was monitored before, during, and after both cycles of sliding, during which the coefficient of friction (COF) was calculated. The resulting wear scars were analyzed by SEM and EDS, and wear volume measurements were performed by 2D profilometry. Finally, the mechanical features of TiO2 NTs were accessed by nanoindentation. The results show that bio-functionalized TiO2 NTs display an enhanced tribocorrosion performance, ascribed to the growth of a nano-thick oxide film at Ti/TiO2 NTs interface, which significantly increased their adhesion strength to the substrate and consequently their hardness. Furthermore, it was discovered that during tribo-electrochemical solicitations, the formation of a P-rich tribofilm takes place, which grants both electrochemical protection and resistance to mechanical wear. This study provides fundamental and new insights for the development of multifunctional TiO2 NTs with long-term biomechanical stability and improved clinical outcomes.National Science FoundationConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Federación Española de Enfermedades RarasFundació Catalana de TrasplantamentCMEMS – Center of MicroElectroMechanical Systems Department of Mechanical Engineering University of MinhoIBTN/BR Brazilian Branch of the Institute of Biomaterials Tribocorrosion and Nanomedicine Faculty of Sciences UNESP – Universidade Estadual PaulistaBrazilian Center for Research in PhysicsDirectory of Life Sciences Applied Metrology National Institute of Metrology Quality and TechnologyPostgraduate Program in Translational Biomedicine University of Grande RioDepartment of Mechanical Engineering University of MinhoDepartment of Bioengineering University of Illinois at ChicagoIBTN/US American Branch of the Institute of Biomaterials Tribocorrosion and Nanomedicine University of Illinois at ChicagoDepartment of Materials Engineering KU LeuvenFalex Tribology N.V, Wingepark 23BFaculdade de Ciências Departamento de Física UNESP – Universidade Estadual PaulistaIBTN/BR Brazilian Branch of the Institute of Biomaterials Tribocorrosion and Nanomedicine Faculty of Sciences UNESP – Universidade Estadual PaulistaFaculdade de Ciências Departamento de Física UNESP – Universidade Estadual PaulistaNational Science Foundation: 1564950CNPq: 490761/2013-5CAPES: 99999.008666/2014-08Federación Española de Enfermedades Raras: POCI-01–0145-FEDER-006941Fundació Catalana de Trasplantament: SFRH/BD/88517/2012Fundació Catalana de Trasplantament: UID/EEA/04436/2013University of MinhoUniversidade Estadual Paulista (Unesp)Brazilian Center for Research in PhysicsQuality and TechnologyUniversity of Grande RioUniversity of Illinois at ChicagoKU LeuvenFalex Tribology N.VAlves, Sofia A. [UNESP]Rossi, André L.Ribeiro, Ana R. [UNESP]Toptan, FatihPinto, Ana M.Shokuhfar, TolouCelis, Jean-PierreRocha, Luís A. [UNESP]2018-12-11T17:17:45Z2018-12-11T17:17:45Z2018-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article143-154application/pdfhttp://dx.doi.org/10.1016/j.jmbbm.2018.01.038Journal of the Mechanical Behavior of Biomedical Materials, v. 80, p. 143-154.1878-01801751-6161http://hdl.handle.net/11449/17582810.1016/j.jmbbm.2018.01.0382-s2.0-850414844582-s2.0-85041484458.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Mechanical Behavior of Biomedical Materials0,958info:eu-repo/semantics/openAccess2024-04-25T17:39:22Zoai:repositorio.unesp.br:11449/175828Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:17:12.286807Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Improved tribocorrosion performance of bio-functionalized TiO2 nanotubes under two-cycle sliding actions in artificial saliva |
title |
Improved tribocorrosion performance of bio-functionalized TiO2 nanotubes under two-cycle sliding actions in artificial saliva |
spellingShingle |
Improved tribocorrosion performance of bio-functionalized TiO2 nanotubes under two-cycle sliding actions in artificial saliva Alves, Sofia A. [UNESP] Bio-functionalization Mechanical properties TiO2 nanotubes Tribocorrosion Two-cycle-sliding |
title_short |
Improved tribocorrosion performance of bio-functionalized TiO2 nanotubes under two-cycle sliding actions in artificial saliva |
title_full |
Improved tribocorrosion performance of bio-functionalized TiO2 nanotubes under two-cycle sliding actions in artificial saliva |
title_fullStr |
Improved tribocorrosion performance of bio-functionalized TiO2 nanotubes under two-cycle sliding actions in artificial saliva |
title_full_unstemmed |
Improved tribocorrosion performance of bio-functionalized TiO2 nanotubes under two-cycle sliding actions in artificial saliva |
title_sort |
Improved tribocorrosion performance of bio-functionalized TiO2 nanotubes under two-cycle sliding actions in artificial saliva |
author |
Alves, Sofia A. [UNESP] |
author_facet |
Alves, Sofia A. [UNESP] Rossi, André L. Ribeiro, Ana R. [UNESP] Toptan, Fatih Pinto, Ana M. Shokuhfar, Tolou Celis, Jean-Pierre Rocha, Luís A. [UNESP] |
author_role |
author |
author2 |
Rossi, André L. Ribeiro, Ana R. [UNESP] Toptan, Fatih Pinto, Ana M. Shokuhfar, Tolou Celis, Jean-Pierre Rocha, Luís A. [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
University of Minho Universidade Estadual Paulista (Unesp) Brazilian Center for Research in Physics Quality and Technology University of Grande Rio University of Illinois at Chicago KU Leuven Falex Tribology N.V |
dc.contributor.author.fl_str_mv |
Alves, Sofia A. [UNESP] Rossi, André L. Ribeiro, Ana R. [UNESP] Toptan, Fatih Pinto, Ana M. Shokuhfar, Tolou Celis, Jean-Pierre Rocha, Luís A. [UNESP] |
dc.subject.por.fl_str_mv |
Bio-functionalization Mechanical properties TiO2 nanotubes Tribocorrosion Two-cycle-sliding |
topic |
Bio-functionalization Mechanical properties TiO2 nanotubes Tribocorrosion Two-cycle-sliding |
description |
After insertion into bone, dental implants may be subjected to tribocorrosive conditions resulting in the release of metallic ions and solid wear debris, which can induce to peri-implant inflammatory reactions accompanied by bone loss, and ultimately implant loosening. Despite the promising ability of TiO2 nanotubes (NTs) to improve osseointegration and avoid infection-related failures, the understanding of their degradation under the simultaneous action of wear and corrosion (tribocorrosion) is still very limited. This study aims, for the first time, to study the tribocorrosion behavior of bio-functionalized TiO2 NTs submitted to two-cycle sliding actions, and compare it with conventional TiO2 NTs. TiO2 NTs grown by anodization were doped with bioactive elements, namely calcium (Ca), phosphorous (P), and zinc (Zn), through reverse polarization anodization treatments. Characterization techniques such as scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and scanning transmission electron microscopy (STEM), were used to characterize the films. Tribocorrosion tests were carried out in artificial saliva (AS) by applying two cycles of reciprocating sliding actions. The open circuit potential (OCP) was monitored before, during, and after both cycles of sliding, during which the coefficient of friction (COF) was calculated. The resulting wear scars were analyzed by SEM and EDS, and wear volume measurements were performed by 2D profilometry. Finally, the mechanical features of TiO2 NTs were accessed by nanoindentation. The results show that bio-functionalized TiO2 NTs display an enhanced tribocorrosion performance, ascribed to the growth of a nano-thick oxide film at Ti/TiO2 NTs interface, which significantly increased their adhesion strength to the substrate and consequently their hardness. Furthermore, it was discovered that during tribo-electrochemical solicitations, the formation of a P-rich tribofilm takes place, which grants both electrochemical protection and resistance to mechanical wear. This study provides fundamental and new insights for the development of multifunctional TiO2 NTs with long-term biomechanical stability and improved clinical outcomes. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T17:17:45Z 2018-12-11T17:17:45Z 2018-04-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.jmbbm.2018.01.038 Journal of the Mechanical Behavior of Biomedical Materials, v. 80, p. 143-154. 1878-0180 1751-6161 http://hdl.handle.net/11449/175828 10.1016/j.jmbbm.2018.01.038 2-s2.0-85041484458 2-s2.0-85041484458.pdf |
url |
http://dx.doi.org/10.1016/j.jmbbm.2018.01.038 http://hdl.handle.net/11449/175828 |
identifier_str_mv |
Journal of the Mechanical Behavior of Biomedical Materials, v. 80, p. 143-154. 1878-0180 1751-6161 10.1016/j.jmbbm.2018.01.038 2-s2.0-85041484458 2-s2.0-85041484458.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the Mechanical Behavior of Biomedical Materials 0,958 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
143-154 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128219060109312 |