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| Naji, M. |
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| Azevedo, Nuno Monteiro |
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Rutland, Mark
KTH Royal Institute of Technology
in Cooperation with on an Cooperation-Score of 37%
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Publications (7/7 displayed)
- 2024Small-Angle Neutron Scattering Insights into 2-Ethylhexyl Laurate: A Remarkable Bioestercitations
- 2024Small-Angle Neutron Scattering Insights into 2-Ethylhexyl Laurate: A Remarkable Bioestercitations
- 2015Can Cobalt(II) and Chromium(III) Ions Released from Joint Prostheses Influence the Friction Coefficientcitations
- 2013Non-ionic assembly of nanofibrillated cellulose and polyethylene glycol grafted carboxymethyl cellulose and the effect of aqueous lubrication in nanocomposite formationcitations
- 2009Adhesion dynamics for cellulose nanocomposites.citations
- 2002Dynamic adhesion of grafted polymer surfaces as studied by surface force measurementscitations
- 2001Study of thin surfactant films under shear using the tribological surface force apparatuscitations
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article
Can Cobalt(II) and Chromium(III) Ions Released from Joint Prostheses Influence the Friction Coefficient
Abstract
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.