Evaluation of Protein Adsorption onto Stainless Steel 316L Surface Following a Tribological Test under Reciprocating Mode

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Abstract:

In total hip replacement, once the stem–cement interface debonds under physiological loading, pseudo-synovial fluid would be pumped into this interface serving as the lubricant. In the present study, a tribological test was performed using stainless steel 316L and bone cement lubricated by 25% calf serum. The results demonstrated that the mean friction coefficient was 0.35 and slight scratches were observed on the stainless steel 316L surface. The thickness of physically adsorbed proteins was calculated as more than 10 µm, which protected the stem surface from fretting wear.

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57-61

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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