What is it about?
It is known that collagen-fibre-reinforced structure in articular cartilage contributes to enhancing the fluid load support in biphasic lubrication, which reduces friction. We have shown that the appropriate fibre-reinforcement to PVA hydrogel as artificial cartilage successfully could reduce friction, which was confirmed by experiment and biphasic finite element analysis.
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Why is it important?
Our sliding finite element simulation and experimental sliding test show that the appropriate position of the fibre layer in PVA hydrogel is effective in enhancement of fluid phase load support and therefore reduction the friction. The results indicate the importance of fibre-reinforcement in articular cartilage.
Perspectives
This article is an important study in our research project on the elucidation of lubrication mechanism in natural synovial joints and development of artificial hydrogel cartilage with super lubricity. It is expected that fibre-reinforced hydrogel is applicable to clinical use as biomimetic artificial cartilage.
Professor Emeritus Teruo Murakami
Kyushu University
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This page is a summary of: Biomimetic artificial cartilage: fibre-reinforcement of PVA hydrogel to promote biphasic lubrication mechanism, Biosurface and Biotribology, January 2019, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/bsbt.2018.0031.
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