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Can Cobalt(II) and Chromium(III) Ions Released from Joint Prostheses Influence the Friction Coefficient?
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science. Karolinska Inst, Sweden.ORCID iD: 0000-0003-2145-3650
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science.ORCID iD: 0000-0003-2206-0082
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2015 (English)In: ACS BIOMATERIALS-SCIENCE & ENGINEERING, ISSN 2373-9878, Vol. 1, no 8, 617-620 p.Article in journal (Refereed) Published
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Text
Abstract [en]

Cobalt chromium molybdenum alloys (CoCrMo) are commonly used as articulating components in joint prostheses. In this tribocorrosive environment, wear debris and metal ionic species are released and interact with proteins, possibly resulting in protein aggregation. This study aimed to investigate whether this could have an effect on the friction coefficient in a typical material couple, namely CoCrMo-on-polyethylene. It was confirmed that both Co(II) and Cr(III) ions, and their combination, at concentrations relevant for the metal release situation, resulted in protein aggregation and its concomitant precipitation, which increased the friction coefficient. Future studies should identify the clinical importance of these findings.

Place, publisher, year, edition, pages
2015. Vol. 1, no 8, 617-620 p.
Keyword [en]
hip joint, replacement, friction, protein-metal binding, CoCrMo, alloy tribology
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-185094DOI: 10.1021/acsbiomaterials.5b00183ISI: 000372214100001Scopus ID: 2-s2.0-84969211105OAI: oai:DiVA.org:kth-185094DiVA: diva2:919046
Note

QC 20160412

Available from: 2016-04-12 Created: 2016-04-11 Last updated: 2016-11-23Bibliographically approved

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Hedberg, Yolanda S.Pradhan, S.Odnevall Wallinder, IngerRutland, Mark W.
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CiteExportLink to record
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