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Driving electrochemical corrosion of implanted CoCrMo metal via oscillatory electric fields without mechanical wear
Decades of research have been dedicated to understanding the corrosion mechanisms of metal based implanted prosthetics utilized in modern surgical procedures. Focused primarily on mechanically driven wear, current fretting and crevice corrosion investigations have yet to precisely replicate the comp...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8595661/ https://www.ncbi.nlm.nih.gov/pubmed/34785746 http://dx.doi.org/10.1038/s41598-021-01810-5 |
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author | Welles, Thomas S. Ahn, Jeongmin |
author_facet | Welles, Thomas S. Ahn, Jeongmin |
author_sort | Welles, Thomas S. |
collection | PubMed |
description | Decades of research have been dedicated to understanding the corrosion mechanisms of metal based implanted prosthetics utilized in modern surgical procedures. Focused primarily on mechanically driven wear, current fretting and crevice corrosion investigations have yet to precisely replicate the complex chemical composition of corrosion products recovered from patients’ periprosthetic tissue. This work specifically targets the creation of corrosion products at the metal on metal junction utilized in modular hip prosthetics. Moreover, this manuscript serves as an initial investigation into the potential interaction between implanted CoCrMo metal alloy and low amplitude electrical oscillation, similar in magnitude to those which may develop from ambient electromagnetic radiation. It is believed that introduction of such an electrical oscillation may be able to initiate electrochemical reactions between the metal and surrounding fluid, forming the precursor to secondary wear particles, without mechanically eroding the metal’s natural passivation layer. Here, we show that a low magnitude electrical oscillation (≤ 200 mV) in the megahertz frequency (10(6) Hz) range is capable of initiating corrosion on implanted CoCrMo without the addition of mechanical wear. Specifically, a 50 MHz, 200 mVpp sine wave generates corrosion products comprising of Cr, P, Ca, O, and C, which is consistent with previous literature on the analysis of failed hip prosthetics. These findings demonstrate that mechanical wear may not be required to initiate the production of chemically complex corrosion products. |
format | Online Article Text |
id | pubmed-8595661 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-85956612021-11-17 Driving electrochemical corrosion of implanted CoCrMo metal via oscillatory electric fields without mechanical wear Welles, Thomas S. Ahn, Jeongmin Sci Rep Article Decades of research have been dedicated to understanding the corrosion mechanisms of metal based implanted prosthetics utilized in modern surgical procedures. Focused primarily on mechanically driven wear, current fretting and crevice corrosion investigations have yet to precisely replicate the complex chemical composition of corrosion products recovered from patients’ periprosthetic tissue. This work specifically targets the creation of corrosion products at the metal on metal junction utilized in modular hip prosthetics. Moreover, this manuscript serves as an initial investigation into the potential interaction between implanted CoCrMo metal alloy and low amplitude electrical oscillation, similar in magnitude to those which may develop from ambient electromagnetic radiation. It is believed that introduction of such an electrical oscillation may be able to initiate electrochemical reactions between the metal and surrounding fluid, forming the precursor to secondary wear particles, without mechanically eroding the metal’s natural passivation layer. Here, we show that a low magnitude electrical oscillation (≤ 200 mV) in the megahertz frequency (10(6) Hz) range is capable of initiating corrosion on implanted CoCrMo without the addition of mechanical wear. Specifically, a 50 MHz, 200 mVpp sine wave generates corrosion products comprising of Cr, P, Ca, O, and C, which is consistent with previous literature on the analysis of failed hip prosthetics. These findings demonstrate that mechanical wear may not be required to initiate the production of chemically complex corrosion products. Nature Publishing Group UK 2021-11-16 /pmc/articles/PMC8595661/ /pubmed/34785746 http://dx.doi.org/10.1038/s41598-021-01810-5 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Welles, Thomas S. Ahn, Jeongmin Driving electrochemical corrosion of implanted CoCrMo metal via oscillatory electric fields without mechanical wear |
title | Driving electrochemical corrosion of implanted CoCrMo metal via oscillatory electric fields without mechanical wear |
title_full | Driving electrochemical corrosion of implanted CoCrMo metal via oscillatory electric fields without mechanical wear |
title_fullStr | Driving electrochemical corrosion of implanted CoCrMo metal via oscillatory electric fields without mechanical wear |
title_full_unstemmed | Driving electrochemical corrosion of implanted CoCrMo metal via oscillatory electric fields without mechanical wear |
title_short | Driving electrochemical corrosion of implanted CoCrMo metal via oscillatory electric fields without mechanical wear |
title_sort | driving electrochemical corrosion of implanted cocrmo metal via oscillatory electric fields without mechanical wear |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8595661/ https://www.ncbi.nlm.nih.gov/pubmed/34785746 http://dx.doi.org/10.1038/s41598-021-01810-5 |
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