Tuning of the Mg Alloy AZ31 Anodizing Process for Biodegradable Implants

[Image: see text] Coatings were grown on the AZ31 Mg alloy by a hard anodizing process in the hot glycerol phosphate-containing electrolyte. Anodizing conditions were optimized, maximizing corrosion resistance estimated by impedance measurements carried out in Hank’s solution at 37 °C. A post anodiz...

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Autores principales: Zaffora, Andrea, Di Franco, Francesco, Virtù, Danilo, Carfì Pavia, Francesco, Ghersi, Giulio, Virtanen, Sannakaisa, Santamaria, Monica
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8041254/
https://www.ncbi.nlm.nih.gov/pubmed/33705091
http://dx.doi.org/10.1021/acsami.0c22933
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author Zaffora, Andrea
Di Franco, Francesco
Virtù, Danilo
Carfì Pavia, Francesco
Ghersi, Giulio
Virtanen, Sannakaisa
Santamaria, Monica
author_facet Zaffora, Andrea
Di Franco, Francesco
Virtù, Danilo
Carfì Pavia, Francesco
Ghersi, Giulio
Virtanen, Sannakaisa
Santamaria, Monica
author_sort Zaffora, Andrea
collection PubMed
description [Image: see text] Coatings were grown on the AZ31 Mg alloy by a hard anodizing process in the hot glycerol phosphate-containing electrolyte. Anodizing conditions were optimized, maximizing corrosion resistance estimated by impedance measurements carried out in Hank’s solution at 37 °C. A post anodizing annealing treatment (350 °C for 24 h) allowed us to further enhance the corrosion resistance of the coatings mainly containing magnesium phosphate according to energy-dispersive X-ray spectroscopy and Raman analyses. Gravimetric measurements revealed a hydrogen evolution rate within the limits acceptable for application of AZ31 in biomedical devices. In vitro tests demonstrated that the coatings are biocompatible with a preosteoblast cell line.
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spelling pubmed-80412542021-04-13 Tuning of the Mg Alloy AZ31 Anodizing Process for Biodegradable Implants Zaffora, Andrea Di Franco, Francesco Virtù, Danilo Carfì Pavia, Francesco Ghersi, Giulio Virtanen, Sannakaisa Santamaria, Monica ACS Appl Mater Interfaces [Image: see text] Coatings were grown on the AZ31 Mg alloy by a hard anodizing process in the hot glycerol phosphate-containing electrolyte. Anodizing conditions were optimized, maximizing corrosion resistance estimated by impedance measurements carried out in Hank’s solution at 37 °C. A post anodizing annealing treatment (350 °C for 24 h) allowed us to further enhance the corrosion resistance of the coatings mainly containing magnesium phosphate according to energy-dispersive X-ray spectroscopy and Raman analyses. Gravimetric measurements revealed a hydrogen evolution rate within the limits acceptable for application of AZ31 in biomedical devices. In vitro tests demonstrated that the coatings are biocompatible with a preosteoblast cell line. American Chemical Society 2021-03-11 2021-03-24 /pmc/articles/PMC8041254/ /pubmed/33705091 http://dx.doi.org/10.1021/acsami.0c22933 Text en © 2021 The Authors. Published by American Chemical Society Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Zaffora, Andrea
Di Franco, Francesco
Virtù, Danilo
Carfì Pavia, Francesco
Ghersi, Giulio
Virtanen, Sannakaisa
Santamaria, Monica
Tuning of the Mg Alloy AZ31 Anodizing Process for Biodegradable Implants
title Tuning of the Mg Alloy AZ31 Anodizing Process for Biodegradable Implants
title_full Tuning of the Mg Alloy AZ31 Anodizing Process for Biodegradable Implants
title_fullStr Tuning of the Mg Alloy AZ31 Anodizing Process for Biodegradable Implants
title_full_unstemmed Tuning of the Mg Alloy AZ31 Anodizing Process for Biodegradable Implants
title_short Tuning of the Mg Alloy AZ31 Anodizing Process for Biodegradable Implants
title_sort tuning of the mg alloy az31 anodizing process for biodegradable implants
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8041254/
https://www.ncbi.nlm.nih.gov/pubmed/33705091
http://dx.doi.org/10.1021/acsami.0c22933
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