The electrochemical behavior of the NiTi alloy in different simulated body fluids
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/147550 |
Resumo: | In order to improve the NiTi alloy biocompatibility, surface treatments become very important. Nevertheless, researchers use different solutions to simulate the body fluids in electrochemical assays, and the correlation between the obtained results is difficult and might not even be possible. The present paper evaluated the electrochemical behavior of polished NiTi surfaces exposed to different simulated body fluid solutions: Hanks solution, Hanks’ balanced salt (HBSS) solution, saline body fluid (SBF) solution, and Ringer solution. The electrochemical behavior of NiTi was evaluated by open circuit potential (OCP) and cyclic voltammetry tests. The surfaces of the samples were also characterized by scanning electron microscopy, which was performed after the electrochemical tests. The results demonstrated that the NiTi alloy shows the same corrosion mechanism (pitting) in all simulated body fluids that were studied. However, the corrosion potential changes for each electrolyte, being HBSS, SBF and Ringer the most corrosive solutions. Furthermore, the Hanks and HBSS solutions demonstrated good reproducibility of the electochemical results. Considering that the HBSS represents an extreme environment, this solution seems to be the most indicated to study the corrosion behavior of NiTi treated surfaces. |
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Hansen, Alana WittFühr, Luciane TaisAntonini, Leonardo MarascaVillarinho, Denis JardimMarino, Cláudia Eliana BrunoMalfatti, Célia de Fraga2016-08-24T02:15:38Z20161516-1439http://hdl.handle.net/10183/147550000998550In order to improve the NiTi alloy biocompatibility, surface treatments become very important. Nevertheless, researchers use different solutions to simulate the body fluids in electrochemical assays, and the correlation between the obtained results is difficult and might not even be possible. The present paper evaluated the electrochemical behavior of polished NiTi surfaces exposed to different simulated body fluid solutions: Hanks solution, Hanks’ balanced salt (HBSS) solution, saline body fluid (SBF) solution, and Ringer solution. The electrochemical behavior of NiTi was evaluated by open circuit potential (OCP) and cyclic voltammetry tests. The surfaces of the samples were also characterized by scanning electron microscopy, which was performed after the electrochemical tests. The results demonstrated that the NiTi alloy shows the same corrosion mechanism (pitting) in all simulated body fluids that were studied. However, the corrosion potential changes for each electrolyte, being HBSS, SBF and Ringer the most corrosive solutions. Furthermore, the Hanks and HBSS solutions demonstrated good reproducibility of the electochemical results. Considering that the HBSS represents an extreme environment, this solution seems to be the most indicated to study the corrosion behavior of NiTi treated surfaces.application/pdfengMaterials research : ibero-american journal of materials. São Carlos, SP. Vol. 18, no. 1 (Jan./Feb. 2015), p. 184-190BiomateriaisComportamento eletroquímicoLigas de níquel-titânioMetallic biomaterialElectrochemical behaviorNiTiSimulated body fluidsThe electrochemical behavior of the NiTi alloy in different simulated body fluidsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000998550.pdf000998550.pdfTexto completo (inglês)application/pdf8374695http://www.lume.ufrgs.br/bitstream/10183/147550/1/000998550.pdf807f6cfcc4838af7c89fad69a198d645MD51TEXT000998550.pdf.txt000998550.pdf.txtExtracted Texttext/plain31695http://www.lume.ufrgs.br/bitstream/10183/147550/2/000998550.pdf.txt20761e6ff0da0024d754b01ebb101963MD52THUMBNAIL000998550.pdf.jpg000998550.pdf.jpgGenerated Thumbnailimage/jpeg2018http://www.lume.ufrgs.br/bitstream/10183/147550/3/000998550.pdf.jpg4a12d1e61e2ed41a5132964ac96eaba6MD5310183/1475502018-10-29 08:40:28.456oai:www.lume.ufrgs.br:10183/147550Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-29T11:40:28Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
The electrochemical behavior of the NiTi alloy in different simulated body fluids |
title |
The electrochemical behavior of the NiTi alloy in different simulated body fluids |
spellingShingle |
The electrochemical behavior of the NiTi alloy in different simulated body fluids Hansen, Alana Witt Biomateriais Comportamento eletroquímico Ligas de níquel-titânio Metallic biomaterial Electrochemical behavior NiTi Simulated body fluids |
title_short |
The electrochemical behavior of the NiTi alloy in different simulated body fluids |
title_full |
The electrochemical behavior of the NiTi alloy in different simulated body fluids |
title_fullStr |
The electrochemical behavior of the NiTi alloy in different simulated body fluids |
title_full_unstemmed |
The electrochemical behavior of the NiTi alloy in different simulated body fluids |
title_sort |
The electrochemical behavior of the NiTi alloy in different simulated body fluids |
author |
Hansen, Alana Witt |
author_facet |
Hansen, Alana Witt Führ, Luciane Tais Antonini, Leonardo Marasca Villarinho, Denis Jardim Marino, Cláudia Eliana Bruno Malfatti, Célia de Fraga |
author_role |
author |
author2 |
Führ, Luciane Tais Antonini, Leonardo Marasca Villarinho, Denis Jardim Marino, Cláudia Eliana Bruno Malfatti, Célia de Fraga |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Hansen, Alana Witt Führ, Luciane Tais Antonini, Leonardo Marasca Villarinho, Denis Jardim Marino, Cláudia Eliana Bruno Malfatti, Célia de Fraga |
dc.subject.por.fl_str_mv |
Biomateriais Comportamento eletroquímico Ligas de níquel-titânio |
topic |
Biomateriais Comportamento eletroquímico Ligas de níquel-titânio Metallic biomaterial Electrochemical behavior NiTi Simulated body fluids |
dc.subject.eng.fl_str_mv |
Metallic biomaterial Electrochemical behavior NiTi Simulated body fluids |
description |
In order to improve the NiTi alloy biocompatibility, surface treatments become very important. Nevertheless, researchers use different solutions to simulate the body fluids in electrochemical assays, and the correlation between the obtained results is difficult and might not even be possible. The present paper evaluated the electrochemical behavior of polished NiTi surfaces exposed to different simulated body fluid solutions: Hanks solution, Hanks’ balanced salt (HBSS) solution, saline body fluid (SBF) solution, and Ringer solution. The electrochemical behavior of NiTi was evaluated by open circuit potential (OCP) and cyclic voltammetry tests. The surfaces of the samples were also characterized by scanning electron microscopy, which was performed after the electrochemical tests. The results demonstrated that the NiTi alloy shows the same corrosion mechanism (pitting) in all simulated body fluids that were studied. However, the corrosion potential changes for each electrolyte, being HBSS, SBF and Ringer the most corrosive solutions. Furthermore, the Hanks and HBSS solutions demonstrated good reproducibility of the electochemical results. Considering that the HBSS represents an extreme environment, this solution seems to be the most indicated to study the corrosion behavior of NiTi treated surfaces. |
publishDate |
2016 |
dc.date.accessioned.fl_str_mv |
2016-08-24T02:15:38Z |
dc.date.issued.fl_str_mv |
2016 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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http://hdl.handle.net/10183/147550 |
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1516-1439 |
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000998550 |
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http://hdl.handle.net/10183/147550 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Materials research : ibero-american journal of materials. São Carlos, SP. Vol. 18, no. 1 (Jan./Feb. 2015), p. 184-190 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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