Evaluation of a superior lubrication mechanism with biphasic hydrogels for artificial cartilage

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

研究成果: ジャーナルへの寄稿学術誌査読

48 被引用数 (Scopus)

抄録

To extend the durability of artificial joints, biomimetic artificial hydrogel cartilage is proposed as a way of improving the lubrication mechanism in artificial joints. The application of hydrogels with properties similar to those of articular cartilage can be expected to duplicate the superior load-carrying capacity and lubricating ability of natural synovial joints. Frictional behaviors with three kinds of poly(vinyl alcohol) (PVA) hydrogels with high water content were examined in reciprocating tests. Interstitial fluid pressure, von Mises stress and fluid flow were compared in biphasic finite element analysis, and frictional behavior was evaluated in terms of biphasic lubrication and surface lubricity. Hybrid gel prepared by a combination of cast-drying and freeze-thawing methods showed superior low friction.

本文言語英語
ページ(範囲)19-26
ページ数8
ジャーナルTribology International
89
DOI
出版ステータス出版済み - 9月 2015

!!!All Science Journal Classification (ASJC) codes

  • 材料力学
  • 機械工学
  • 表面および界面
  • 表面、皮膜および薄膜

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