Biphasic and boundary lubrication mechanisms in artificial hydrogel cartilage: A review.

Teruo Murakami, Seido Yarimitsu, Kazuhiro Nakashima, Nobuo Sakai, Tetsuo Yamaguchi, Yoshinori Sawae, Atsushi Suzuki

Journal: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine 2016;229(12):864-78

PMID: 26614800

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Abstract

Various studies on the application of artificial hydrogel cartilage to cartilage substitutes and artificial joints have been conducted. It is expected in clinical application of artificial hydrogel cartilage that not only soft-elastohydrodynamic lubrication but biphasic, hydration, gel-film and boundary lubrication mechanisms will be effective to sustain extremely low friction and minimal wear in daily activities similar to healthy natural synovial joints with adaptive multimode lubrication. In this review article, the effectiveness of biphasic lubrication and boundary lubrication in hydrogels in thin film condition is focused in relation to the structures and properties of hydrogels. As examples, the tribological behaviors in three kinds of poly(vinyl alcohol) hydrogels with high water content are compared, and the importance of lubrication mechanism in biomimetic artificial hydrogel cartilage is discussed to extend the durability of cartilage substitute.

Address: Research Center for Advanced Biomechanics, Kyushu University, Fukuoka, Japan [email protected].; Research Center for Advanced Biomechanics, Kyushu University, Fukuoka, Japan Faculty of System Design, Tokyo Metropolitan University, Tokyo, Japan.; Department of Mechanical Engineering, Faculty of Engineering, Kyushu University, Fukuoka, Japan.; Department of Applied Science for Integrated System Engineering, Graduate School of Engineering, Kyushu Institute of Technology, Kitakyushu, Japan.; Department of Materials Science and Research Institute of Environment and Information Sciences, Yokohama National University, Yokohama, Japan.

DOI: 10.1177/0954411915611160

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MeSH Terms: Biocompatible Materials, Cartilage, Articular, Friction, Hydrogel, Polyethylene Glycol Dimethacrylate, Lubrication, Materials Testing, Polyvinyl Alcohol, Stress, Mechanical