Can Cobalt(II) and Chromium(III) Ions Released from Joint Prostheses Influence the Friction Coefficient? [Elektronisk resurs]
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Hedberg, Yolanda (författare)
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Pettersson, Maria (författare)
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Pradhan, Sulena (författare)
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Odnevall Wallinder, Inger (författare)
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Rutland, Mark (författare)
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Persson, Cecilia (författare)
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Uppsala universitet Teknisk-naturvetenskapliga vetenskapsområdet (utgivare)
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Uppsala universitet Teknisk-naturvetenskapliga vetenskapsområdet (utgivare)
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Materials in Medicin (medarbetare)
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Materials in Medicine (medarbetare)
- 2015
- Engelska.
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Ingår i: ACS Biomaterials Science & Engineering. ; 1:8, 617-620
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Sammanfattning
Ämnesord
Stäng
- Cobalt chromium molybdenum alloys (CoCr-Mo) 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 eff ect on the friction coefficient in a typical material couple, namely CoCrMo-onpolyethylene. 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 coeffi cient. Future studies should identify the clinical importance of these findings.
Ämnesord
- Engineering and Technology (hsv)
- Materials Engineering (hsv)
- Other Materials Engineering (hsv)
- Teknik och teknologier (hsv)
- Materialteknik (hsv)
- Annan materialteknik (hsv)
- Medical Engineering (hsv)
- Medical Materials (hsv)
- Medicinteknik (hsv)
- Medicinska material och protesteknik (hsv)
- Teknisk fysik med inriktning mot materialvetenskap (uu)
- Engineering Science with specialization in Materials Science (uu)
Indexterm och SAB-rubrik
- hip joint
- replacement
- friction
- protein-metal binding
- CoCrMo
- alloy tribology
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