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Fluoride Treatment and In Vitro Corrosion Behavior of Mg-Nd-Y-Zn-Zr Alloys Type
Fluoride conversion coatings on Mg present many advantages, among which one can find the reduction of the corrosion rate under “in vivo” or “in vitro” conditions and the promotion of the calcium phosphate deposition. Moreover, the fluoride ions released from MgF(2) do not present cytotoxic effects a...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8779082/ https://www.ncbi.nlm.nih.gov/pubmed/35057284 http://dx.doi.org/10.3390/ma15020566 |
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author | Quan, Pham Hong Antoniac, Iulian Miculescu, Florin Antoniac, Aurora (Păltânea), Veronica Manescu Robu, Alina Bița, Ana-Iulia Miculescu, Marian Saceleanu, Adriana Bodog, Alin Dănuț Saceleanu, Vicentiu |
author_facet | Quan, Pham Hong Antoniac, Iulian Miculescu, Florin Antoniac, Aurora (Păltânea), Veronica Manescu Robu, Alina Bița, Ana-Iulia Miculescu, Marian Saceleanu, Adriana Bodog, Alin Dănuț Saceleanu, Vicentiu |
author_sort | Quan, Pham Hong |
collection | PubMed |
description | Fluoride conversion coatings on Mg present many advantages, among which one can find the reduction of the corrosion rate under “in vivo” or “in vitro” conditions and the promotion of the calcium phosphate deposition. Moreover, the fluoride ions released from MgF(2) do not present cytotoxic effects and inhibit the biofilm formation, and thus these treated alloys are very suitable for cardiovascular stents and biodegradable orthopedic implants. In this paper, the biodegradation behavior of four new magnesium biodegradable alloys that have been developed in the laboratory conditions, before and after surface modifications by fluoride conversion (and sandblasting) coatings, are analyzed. We performed structural and surface analysis (XRD, SEM, contact angle) before and after applying different surface treatments. Furthermore, we studied the electrochemical behavior and biodegradation of all experimental samples after immersion test performed in NaCl solution. For a better evaluation, we also used LM and SEM for evaluation of the corroded samples after immersion test. The results showed an improved corrosion resistance for HF treated alloy in the NaCl solution. The chemical composition, uniformity, thickness and stability of the layers generated on the surface of the alloys significantly influence their corrosion behavior. Our study reveals that HF treatment is a beneficial way to improve the biofunctional properties required for the studied magnesium alloys to be used as biomaterials for manufacturing the orthopedic implants. |
format | Online Article Text |
id | pubmed-8779082 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87790822022-01-22 Fluoride Treatment and In Vitro Corrosion Behavior of Mg-Nd-Y-Zn-Zr Alloys Type Quan, Pham Hong Antoniac, Iulian Miculescu, Florin Antoniac, Aurora (Păltânea), Veronica Manescu Robu, Alina Bița, Ana-Iulia Miculescu, Marian Saceleanu, Adriana Bodog, Alin Dănuț Saceleanu, Vicentiu Materials (Basel) Article Fluoride conversion coatings on Mg present many advantages, among which one can find the reduction of the corrosion rate under “in vivo” or “in vitro” conditions and the promotion of the calcium phosphate deposition. Moreover, the fluoride ions released from MgF(2) do not present cytotoxic effects and inhibit the biofilm formation, and thus these treated alloys are very suitable for cardiovascular stents and biodegradable orthopedic implants. In this paper, the biodegradation behavior of four new magnesium biodegradable alloys that have been developed in the laboratory conditions, before and after surface modifications by fluoride conversion (and sandblasting) coatings, are analyzed. We performed structural and surface analysis (XRD, SEM, contact angle) before and after applying different surface treatments. Furthermore, we studied the electrochemical behavior and biodegradation of all experimental samples after immersion test performed in NaCl solution. For a better evaluation, we also used LM and SEM for evaluation of the corroded samples after immersion test. The results showed an improved corrosion resistance for HF treated alloy in the NaCl solution. The chemical composition, uniformity, thickness and stability of the layers generated on the surface of the alloys significantly influence their corrosion behavior. Our study reveals that HF treatment is a beneficial way to improve the biofunctional properties required for the studied magnesium alloys to be used as biomaterials for manufacturing the orthopedic implants. MDPI 2022-01-12 /pmc/articles/PMC8779082/ /pubmed/35057284 http://dx.doi.org/10.3390/ma15020566 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Quan, Pham Hong Antoniac, Iulian Miculescu, Florin Antoniac, Aurora (Păltânea), Veronica Manescu Robu, Alina Bița, Ana-Iulia Miculescu, Marian Saceleanu, Adriana Bodog, Alin Dănuț Saceleanu, Vicentiu Fluoride Treatment and In Vitro Corrosion Behavior of Mg-Nd-Y-Zn-Zr Alloys Type |
title | Fluoride Treatment and In Vitro Corrosion Behavior of Mg-Nd-Y-Zn-Zr Alloys Type |
title_full | Fluoride Treatment and In Vitro Corrosion Behavior of Mg-Nd-Y-Zn-Zr Alloys Type |
title_fullStr | Fluoride Treatment and In Vitro Corrosion Behavior of Mg-Nd-Y-Zn-Zr Alloys Type |
title_full_unstemmed | Fluoride Treatment and In Vitro Corrosion Behavior of Mg-Nd-Y-Zn-Zr Alloys Type |
title_short | Fluoride Treatment and In Vitro Corrosion Behavior of Mg-Nd-Y-Zn-Zr Alloys Type |
title_sort | fluoride treatment and in vitro corrosion behavior of mg-nd-y-zn-zr alloys type |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8779082/ https://www.ncbi.nlm.nih.gov/pubmed/35057284 http://dx.doi.org/10.3390/ma15020566 |
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