| Cold atmospheric pressure gas plasma enhances the wear performance of ultra-high molecular weight polyethylene. | |
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MedLine Citation:
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PMID: 22202910 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Ultra-high molecular weight polyethylene (UHMWPE) is frequently employed in joint replacements because of its high biocompatibility; however, this material does not exhibit particularly strong wear performance, thus potentially reducing the longevity of such devices. Numerous techniques have been investigated to increase the resistance to wear of UHMWPE, but they are all based on expensive machinery and require a high level of safety precautions. Cold atmospheric pressure gas plasma treatment is an inexpensive process that has been used as a surface modification method and as a sterilization technique. We demonstrate for the first time that a helium/oxygen cold atmospheric pressure gas plasma can be used to enhance the wear performance of UHMWPE without affecting the cytocompatibility of the material. The exposure to a cold atmospheric pressure gas plasma results in a greater level of crosslinking of the polyethylene chains. As a consequence of the higher crosslinking the material stiffness of the treated surface is increased. |
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Authors:
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Stefano Perni; Michael G Kong; Polina Prokopovich |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-12-13 |
Journal Detail:
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Title: Acta biomaterialia Volume: - ISSN: 1878-7568 ISO Abbreviation: - Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-12-28 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101233144 Medline TA: Acta Biomater Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
Affiliation:
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Division of Microbial Diseases, Eastman Dental Institute, University College London, 256 Gray's Inn Road, London WC1X 8LD, UK; Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H OAJ, UK. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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