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The Influence of Plasma Treatment on the Corrosion and Biocompatibility of Magnesium
In our study, plasma surface modification was employed to tailor the surface properties of magnesium in terms of surface chemistry, topography, and wettability. For two sets of samples, the plasma treatment involved two steps using two different gases (hydrogen and oxygen), while one set of samples...
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/PMC9609099/ https://www.ncbi.nlm.nih.gov/pubmed/36295470 http://dx.doi.org/10.3390/ma15207405 |
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author | Kocijan, Aleksandra Kovač, Janez Junkar, Ita Resnik, Matic Kononenko, Veno Conradi, Marjetka |
author_facet | Kocijan, Aleksandra Kovač, Janez Junkar, Ita Resnik, Matic Kononenko, Veno Conradi, Marjetka |
author_sort | Kocijan, Aleksandra |
collection | PubMed |
description | In our study, plasma surface modification was employed to tailor the surface properties of magnesium in terms of surface chemistry, topography, and wettability. For two sets of samples, the plasma treatment involved two steps using two different gases (hydrogen and oxygen), while one set of samples was treated with one step only using oxygen. X-ray photoelectron spectroscopy (XPS) was applied to determine the surface composition, oxidation state of the elements, and the thickness of the surface oxide layer on the Mg samples after different plasma treatments. The surface morphology was characterised using atomic force microscopy (AFM) and scanning electron microscopy (SEM). The wettability was analysed by measuring the static water-contact angles and the corrosion was evaluated using potentiodynamic measurements. The interaction of the live cells with the differently modified Mg surfaces was evaluated in terms of biocompatibility using MG-63 cells (human bone osteosarcoma cells). We have shown that a plasma surface treatment significantly decreased the carbon content and the formation of a 15–20-nm-thick MgO layer was observed. This improves the corrosion resistance, while the biocompatibility was retained, compared to the untreated Mg. A plasma surface treatment is therefore an important step in the development of novel surfaces with improved corrosion resistance for magnesium in biomedical applications. |
format | Online Article Text |
id | pubmed-9609099 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96090992022-10-28 The Influence of Plasma Treatment on the Corrosion and Biocompatibility of Magnesium Kocijan, Aleksandra Kovač, Janez Junkar, Ita Resnik, Matic Kononenko, Veno Conradi, Marjetka Materials (Basel) Article In our study, plasma surface modification was employed to tailor the surface properties of magnesium in terms of surface chemistry, topography, and wettability. For two sets of samples, the plasma treatment involved two steps using two different gases (hydrogen and oxygen), while one set of samples was treated with one step only using oxygen. X-ray photoelectron spectroscopy (XPS) was applied to determine the surface composition, oxidation state of the elements, and the thickness of the surface oxide layer on the Mg samples after different plasma treatments. The surface morphology was characterised using atomic force microscopy (AFM) and scanning electron microscopy (SEM). The wettability was analysed by measuring the static water-contact angles and the corrosion was evaluated using potentiodynamic measurements. The interaction of the live cells with the differently modified Mg surfaces was evaluated in terms of biocompatibility using MG-63 cells (human bone osteosarcoma cells). We have shown that a plasma surface treatment significantly decreased the carbon content and the formation of a 15–20-nm-thick MgO layer was observed. This improves the corrosion resistance, while the biocompatibility was retained, compared to the untreated Mg. A plasma surface treatment is therefore an important step in the development of novel surfaces with improved corrosion resistance for magnesium in biomedical applications. MDPI 2022-10-21 /pmc/articles/PMC9609099/ /pubmed/36295470 http://dx.doi.org/10.3390/ma15207405 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 Kocijan, Aleksandra Kovač, Janez Junkar, Ita Resnik, Matic Kononenko, Veno Conradi, Marjetka The Influence of Plasma Treatment on the Corrosion and Biocompatibility of Magnesium |
title | The Influence of Plasma Treatment on the Corrosion and Biocompatibility of Magnesium |
title_full | The Influence of Plasma Treatment on the Corrosion and Biocompatibility of Magnesium |
title_fullStr | The Influence of Plasma Treatment on the Corrosion and Biocompatibility of Magnesium |
title_full_unstemmed | The Influence of Plasma Treatment on the Corrosion and Biocompatibility of Magnesium |
title_short | The Influence of Plasma Treatment on the Corrosion and Biocompatibility of Magnesium |
title_sort | influence of plasma treatment on the corrosion and biocompatibility of magnesium |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9609099/ https://www.ncbi.nlm.nih.gov/pubmed/36295470 http://dx.doi.org/10.3390/ma15207405 |
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