Effects of Dextrose and Lipopolysaccharide on the Corrosion Behavior of a Ti-6Al-4V Alloy with a Smooth Surface or Treated with Double-Acid-Etching
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1371/journal.pone.0093377 http://hdl.handle.net/11449/112453 |
Resumo: | Diabetes and infections are associated with a high risk of implant failure. However, the effects of such conditions on the electrochemical stability of titanium materials remain unclear. This study evaluated the corrosion behavior of a Ti-6Al-4V alloy, with a smooth surface or conditioned by double-acid-etching, in simulated body fluid with different concentrations of dextrose and lipopolysaccharide. For the electrochemical assay, the open-circuit-potential, electrochemical impedance spectroscopy, and potentiodynamic test were used. The disc surfaces were characterized by scanning electron microscopy and atomic force microscopy. Their surface roughness and Vickers microhardness were also tested. The quantitative data were analyzed by Pearson's correlation and independent t-tests (alpha = 0.05). In the corrosion parameters, there was a strong lipopolysaccharide correlation with the I-pass (passivation current density), C-dl (double-layer capacitance), and R-p (polarization resistance) values (p<0.05) for the Ti-6Al-4V alloy with surface treatment by double-acid-etching. The combination of dextrose and lipopolysaccharide was correlated with the I-corr (corrosion current density) and I-pass (p<0.05). The acid-treated groups showed a significant increase in C-dl values and reduced R-p values (p<0.05, t-test). According to the topography, there was an increase in surface roughness (R-2 = 0.726, p<0.0001 for the smooth surface; R-2 = 0.405, p = 0.036 for the double-acid-etching-treated surface). The microhardness of the smooth Ti-6Al-4V alloy decreased (p<0.05) and that of the treated Ti-6Al-4V alloy increased (p<0.0001). Atomic force microscopy showed changes in the microstructure of the Ti-6Al-4V alloy by increasing the surface thickness mainly in the group associated with dextrose and lipopolysaccharide. The combination of dextrose and lipopolysaccharide affected the corrosion behavior of the Ti-6Al-4V alloy surface treated with double-acid-etching. However, no dose-response corrosion behavior could be observed. These results suggest a greater susceptibility to corrosion of titanium implants in diabetic patients with associated infections. |
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Effects of Dextrose and Lipopolysaccharide on the Corrosion Behavior of a Ti-6Al-4V Alloy with a Smooth Surface or Treated with Double-Acid-EtchingDiabetes and infections are associated with a high risk of implant failure. However, the effects of such conditions on the electrochemical stability of titanium materials remain unclear. This study evaluated the corrosion behavior of a Ti-6Al-4V alloy, with a smooth surface or conditioned by double-acid-etching, in simulated body fluid with different concentrations of dextrose and lipopolysaccharide. For the electrochemical assay, the open-circuit-potential, electrochemical impedance spectroscopy, and potentiodynamic test were used. The disc surfaces were characterized by scanning electron microscopy and atomic force microscopy. Their surface roughness and Vickers microhardness were also tested. The quantitative data were analyzed by Pearson's correlation and independent t-tests (alpha = 0.05). In the corrosion parameters, there was a strong lipopolysaccharide correlation with the I-pass (passivation current density), C-dl (double-layer capacitance), and R-p (polarization resistance) values (p<0.05) for the Ti-6Al-4V alloy with surface treatment by double-acid-etching. The combination of dextrose and lipopolysaccharide was correlated with the I-corr (corrosion current density) and I-pass (p<0.05). The acid-treated groups showed a significant increase in C-dl values and reduced R-p values (p<0.05, t-test). According to the topography, there was an increase in surface roughness (R-2 = 0.726, p<0.0001 for the smooth surface; R-2 = 0.405, p = 0.036 for the double-acid-etching-treated surface). The microhardness of the smooth Ti-6Al-4V alloy decreased (p<0.05) and that of the treated Ti-6Al-4V alloy increased (p<0.0001). Atomic force microscopy showed changes in the microstructure of the Ti-6Al-4V alloy by increasing the surface thickness mainly in the group associated with dextrose and lipopolysaccharide. The combination of dextrose and lipopolysaccharide affected the corrosion behavior of the Ti-6Al-4V alloy surface treated with double-acid-etching. However, no dose-response corrosion behavior could be observed. These results suggest a greater susceptibility to corrosion of titanium implants in diabetic patients with associated infections.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Univ Estadual Paulista UNESP, Aracatuba Dent Sch, Dept Dent Mat & Prosthodont, Sao Paulo, BrazilUniv Estadual Paulista UNESP, Dept Surg, Sao Paulo, BrazilUniv Estadual Paulista UNESP, Integrated Clin, Aracatuba Dent Sch, Sao Paulo, BrazilUniv Illinois, Coll Dent, Dept Restorat Dent, Chicago, IL USARush Univ, Dept Orthoped Surg, Med Ctr, Chicago, IL 60612 USAUniv Campinas UNICAMP, Piracicaba Dent Sch, Dept Prosthodont & Periodontol, Sao Paulo, BrazilUniv Estadual Paulista UNESP, Aracatuba Dent Sch, Dept Dent Mat & Prosthodont, Sao Paulo, BrazilUniv Estadual Paulista UNESP, Dept Surg, Sao Paulo, BrazilUniv Estadual Paulista UNESP, Integrated Clin, Aracatuba Dent Sch, Sao Paulo, BrazilFAPESP: 12/14282-5FAPESP: 11/20021-7Public Library ScienceUniversidade Estadual Paulista (Unesp)Univ IllinoisRush UnivUniversidade Estadual de Campinas (UNICAMP)Faverani, Leonardo P. [UNESP]Assunção, Wirley Goncalves [UNESP]Carvalho, Paulo Sergio P. de [UNESP]Yuan, Judy Chia-ChunSukotjo, CortinoMathew, Mathew T.Barao, Valentim A.2014-12-03T13:10:43Z2014-12-03T13:10:43Z2014-03-26info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article15application/pdfhttp://dx.doi.org/10.1371/journal.pone.0093377Plos One. San Francisco: Public Library Science, v. 9, n. 3, 15 p., 2014.1932-6203http://hdl.handle.net/11449/11245310.1371/journal.pone.0093377WOS:000333677000136WOS000333677000136.pdf4438747643373395Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPLOS ONE2.7661,164info:eu-repo/semantics/openAccess2023-11-07T06:14:09Zoai:repositorio.unesp.br:11449/112453Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-07T06:14:09Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effects of Dextrose and Lipopolysaccharide on the Corrosion Behavior of a Ti-6Al-4V Alloy with a Smooth Surface or Treated with Double-Acid-Etching |
title |
Effects of Dextrose and Lipopolysaccharide on the Corrosion Behavior of a Ti-6Al-4V Alloy with a Smooth Surface or Treated with Double-Acid-Etching |
spellingShingle |
Effects of Dextrose and Lipopolysaccharide on the Corrosion Behavior of a Ti-6Al-4V Alloy with a Smooth Surface or Treated with Double-Acid-Etching Faverani, Leonardo P. [UNESP] |
title_short |
Effects of Dextrose and Lipopolysaccharide on the Corrosion Behavior of a Ti-6Al-4V Alloy with a Smooth Surface or Treated with Double-Acid-Etching |
title_full |
Effects of Dextrose and Lipopolysaccharide on the Corrosion Behavior of a Ti-6Al-4V Alloy with a Smooth Surface or Treated with Double-Acid-Etching |
title_fullStr |
Effects of Dextrose and Lipopolysaccharide on the Corrosion Behavior of a Ti-6Al-4V Alloy with a Smooth Surface or Treated with Double-Acid-Etching |
title_full_unstemmed |
Effects of Dextrose and Lipopolysaccharide on the Corrosion Behavior of a Ti-6Al-4V Alloy with a Smooth Surface or Treated with Double-Acid-Etching |
title_sort |
Effects of Dextrose and Lipopolysaccharide on the Corrosion Behavior of a Ti-6Al-4V Alloy with a Smooth Surface or Treated with Double-Acid-Etching |
author |
Faverani, Leonardo P. [UNESP] |
author_facet |
Faverani, Leonardo P. [UNESP] Assunção, Wirley Goncalves [UNESP] Carvalho, Paulo Sergio P. de [UNESP] Yuan, Judy Chia-Chun Sukotjo, Cortino Mathew, Mathew T. Barao, Valentim A. |
author_role |
author |
author2 |
Assunção, Wirley Goncalves [UNESP] Carvalho, Paulo Sergio P. de [UNESP] Yuan, Judy Chia-Chun Sukotjo, Cortino Mathew, Mathew T. Barao, Valentim A. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Univ Illinois Rush Univ Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
Faverani, Leonardo P. [UNESP] Assunção, Wirley Goncalves [UNESP] Carvalho, Paulo Sergio P. de [UNESP] Yuan, Judy Chia-Chun Sukotjo, Cortino Mathew, Mathew T. Barao, Valentim A. |
description |
Diabetes and infections are associated with a high risk of implant failure. However, the effects of such conditions on the electrochemical stability of titanium materials remain unclear. This study evaluated the corrosion behavior of a Ti-6Al-4V alloy, with a smooth surface or conditioned by double-acid-etching, in simulated body fluid with different concentrations of dextrose and lipopolysaccharide. For the electrochemical assay, the open-circuit-potential, electrochemical impedance spectroscopy, and potentiodynamic test were used. The disc surfaces were characterized by scanning electron microscopy and atomic force microscopy. Their surface roughness and Vickers microhardness were also tested. The quantitative data were analyzed by Pearson's correlation and independent t-tests (alpha = 0.05). In the corrosion parameters, there was a strong lipopolysaccharide correlation with the I-pass (passivation current density), C-dl (double-layer capacitance), and R-p (polarization resistance) values (p<0.05) for the Ti-6Al-4V alloy with surface treatment by double-acid-etching. The combination of dextrose and lipopolysaccharide was correlated with the I-corr (corrosion current density) and I-pass (p<0.05). The acid-treated groups showed a significant increase in C-dl values and reduced R-p values (p<0.05, t-test). According to the topography, there was an increase in surface roughness (R-2 = 0.726, p<0.0001 for the smooth surface; R-2 = 0.405, p = 0.036 for the double-acid-etching-treated surface). The microhardness of the smooth Ti-6Al-4V alloy decreased (p<0.05) and that of the treated Ti-6Al-4V alloy increased (p<0.0001). Atomic force microscopy showed changes in the microstructure of the Ti-6Al-4V alloy by increasing the surface thickness mainly in the group associated with dextrose and lipopolysaccharide. The combination of dextrose and lipopolysaccharide affected the corrosion behavior of the Ti-6Al-4V alloy surface treated with double-acid-etching. However, no dose-response corrosion behavior could be observed. These results suggest a greater susceptibility to corrosion of titanium implants in diabetic patients with associated infections. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-03T13:10:43Z 2014-12-03T13:10:43Z 2014-03-26 |
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/10.1371/journal.pone.0093377 Plos One. San Francisco: Public Library Science, v. 9, n. 3, 15 p., 2014. 1932-6203 http://hdl.handle.net/11449/112453 10.1371/journal.pone.0093377 WOS:000333677000136 WOS000333677000136.pdf 4438747643373395 |
url |
http://dx.doi.org/10.1371/journal.pone.0093377 http://hdl.handle.net/11449/112453 |
identifier_str_mv |
Plos One. San Francisco: Public Library Science, v. 9, n. 3, 15 p., 2014. 1932-6203 10.1371/journal.pone.0093377 WOS:000333677000136 WOS000333677000136.pdf 4438747643373395 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
PLOS ONE 2.766 1,164 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
15 application/pdf |
dc.publisher.none.fl_str_mv |
Public Library Science |
publisher.none.fl_str_mv |
Public Library Science |
dc.source.none.fl_str_mv |
Web of Science 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 |
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1803046369799176192 |