Bioactive coating on titanium implants modified by Nd:YVO4 laser
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.apsusc.2010.12.056 http://hdl.handle.net/11449/42523 |
Resumo: | Apatite coating was applied on titanium surfaces modified by Nd:YVO4 laser ablations with different energy densities (fluency) at ambient pressure and atmosphere. The apatites were deposited by biomimetic method using a simulated body fluid solution that simulates the salt concentration of bodily fluids. The titanium surfaces submitted to the fast melting and solidification processes (ablation) were immersed in the simulated body fluid solution for four days. The samples were divided into two groups, one underwent heat treatment at 600 degrees C and the other dried at 37 degrees C. For the samples treated thermally the diffractograms showed the formation of a phase mixture, with the presence of the hydroxyapatite, tricalcium phosphate, calcium deficient hydroxyapatite, carbonated hydroxyapatite and octacalcium phosphate phases. For the samples dried only the formation of the octacalcium phosphate and hydroxyapatite phases was verified. The infrared spectra show bands relative to chemical bonds confirmed by the diffraction analyses. The coating of both the samples with and without heat treatment present dense morphology and made up of a clustering of spherical particles ranging from 5 to 20 mu m. Based on the results we infer that the modification of implant surfaces employing laser ablations leads to the formation of oxides that help the formation of hydroxyapatite without the need of a heat treatment. (C) 2010 Elsevier B.V. All rights reserved. |
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Repositório Institucional da UNESP |
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Bioactive coating on titanium implants modified by Nd:YVO4 laserLaser ablationApatitesTitaniumBiomimetic methodApatite coating was applied on titanium surfaces modified by Nd:YVO4 laser ablations with different energy densities (fluency) at ambient pressure and atmosphere. The apatites were deposited by biomimetic method using a simulated body fluid solution that simulates the salt concentration of bodily fluids. The titanium surfaces submitted to the fast melting and solidification processes (ablation) were immersed in the simulated body fluid solution for four days. The samples were divided into two groups, one underwent heat treatment at 600 degrees C and the other dried at 37 degrees C. For the samples treated thermally the diffractograms showed the formation of a phase mixture, with the presence of the hydroxyapatite, tricalcium phosphate, calcium deficient hydroxyapatite, carbonated hydroxyapatite and octacalcium phosphate phases. For the samples dried only the formation of the octacalcium phosphate and hydroxyapatite phases was verified. The infrared spectra show bands relative to chemical bonds confirmed by the diffraction analyses. The coating of both the samples with and without heat treatment present dense morphology and made up of a clustering of spherical particles ranging from 5 to 20 mu m. Based on the results we infer that the modification of implant surfaces employing laser ablations leads to the formation of oxides that help the formation of hydroxyapatite without the need of a heat treatment. (C) 2010 Elsevier B.V. All rights reserved.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Univ Estadual Paulista UNESP, Inst Quim, Grp Biomat, BR-14800900 Araraquara, SP, BrazilUniversidade Federal de São Carlos (UFSCar), Dept Engn Mat DEMa, BR-13565905 São Carlos, SP, BrazilUniv Estadual Paulista UNESP, Inst Quim, Grp Biomat, BR-14800900 Araraquara, SP, BrazilElsevier B.V.Universidade Estadual Paulista (Unesp)Universidade Federal de São Carlos (UFSCar)de Almeida Filho, Edson [UNESP]Fraga, Alexandre F.Bini, Rafael A. [UNESP]Guastaldi, Antonio Carlos [UNESP]2014-05-20T15:34:22Z2014-05-20T15:34:22Z2011-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article4575-4580application/pdfhttp://dx.doi.org/10.1016/j.apsusc.2010.12.056Applied Surface Science. Amsterdam: Elsevier B.V., v. 257, n. 10, p. 4575-4580, 2011.0169-4332http://hdl.handle.net/11449/4252310.1016/j.apsusc.2010.12.056WOS:000286808300006WOS000286808300006.pdf6443430122330366Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengApplied Surface Science4.4391,093info:eu-repo/semantics/openAccess2023-11-12T06:09:57Zoai:repositorio.unesp.br:11449/42523Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-12T06:09:57Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Bioactive coating on titanium implants modified by Nd:YVO4 laser |
title |
Bioactive coating on titanium implants modified by Nd:YVO4 laser |
spellingShingle |
Bioactive coating on titanium implants modified by Nd:YVO4 laser de Almeida Filho, Edson [UNESP] Laser ablation Apatites Titanium Biomimetic method |
title_short |
Bioactive coating on titanium implants modified by Nd:YVO4 laser |
title_full |
Bioactive coating on titanium implants modified by Nd:YVO4 laser |
title_fullStr |
Bioactive coating on titanium implants modified by Nd:YVO4 laser |
title_full_unstemmed |
Bioactive coating on titanium implants modified by Nd:YVO4 laser |
title_sort |
Bioactive coating on titanium implants modified by Nd:YVO4 laser |
author |
de Almeida Filho, Edson [UNESP] |
author_facet |
de Almeida Filho, Edson [UNESP] Fraga, Alexandre F. Bini, Rafael A. [UNESP] Guastaldi, Antonio Carlos [UNESP] |
author_role |
author |
author2 |
Fraga, Alexandre F. Bini, Rafael A. [UNESP] Guastaldi, Antonio Carlos [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de São Carlos (UFSCar) |
dc.contributor.author.fl_str_mv |
de Almeida Filho, Edson [UNESP] Fraga, Alexandre F. Bini, Rafael A. [UNESP] Guastaldi, Antonio Carlos [UNESP] |
dc.subject.por.fl_str_mv |
Laser ablation Apatites Titanium Biomimetic method |
topic |
Laser ablation Apatites Titanium Biomimetic method |
description |
Apatite coating was applied on titanium surfaces modified by Nd:YVO4 laser ablations with different energy densities (fluency) at ambient pressure and atmosphere. The apatites were deposited by biomimetic method using a simulated body fluid solution that simulates the salt concentration of bodily fluids. The titanium surfaces submitted to the fast melting and solidification processes (ablation) were immersed in the simulated body fluid solution for four days. The samples were divided into two groups, one underwent heat treatment at 600 degrees C and the other dried at 37 degrees C. For the samples treated thermally the diffractograms showed the formation of a phase mixture, with the presence of the hydroxyapatite, tricalcium phosphate, calcium deficient hydroxyapatite, carbonated hydroxyapatite and octacalcium phosphate phases. For the samples dried only the formation of the octacalcium phosphate and hydroxyapatite phases was verified. The infrared spectra show bands relative to chemical bonds confirmed by the diffraction analyses. The coating of both the samples with and without heat treatment present dense morphology and made up of a clustering of spherical particles ranging from 5 to 20 mu m. Based on the results we infer that the modification of implant surfaces employing laser ablations leads to the formation of oxides that help the formation of hydroxyapatite without the need of a heat treatment. (C) 2010 Elsevier B.V. All rights reserved. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-03-01 2014-05-20T15:34:22Z 2014-05-20T15:34:22Z |
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.apsusc.2010.12.056 Applied Surface Science. Amsterdam: Elsevier B.V., v. 257, n. 10, p. 4575-4580, 2011. 0169-4332 http://hdl.handle.net/11449/42523 10.1016/j.apsusc.2010.12.056 WOS:000286808300006 WOS000286808300006.pdf 6443430122330366 |
url |
http://dx.doi.org/10.1016/j.apsusc.2010.12.056 http://hdl.handle.net/11449/42523 |
identifier_str_mv |
Applied Surface Science. Amsterdam: Elsevier B.V., v. 257, n. 10, p. 4575-4580, 2011. 0169-4332 10.1016/j.apsusc.2010.12.056 WOS:000286808300006 WOS000286808300006.pdf 6443430122330366 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Applied Surface Science 4.439 1,093 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
4575-4580 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
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 |
|
_version_ |
1797789682445058048 |