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

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)19-26
Number of pages8
JournalTribology International
Volume89
DOIs
Publication statusPublished - Sep 1 2015

Fingerprint

cartilage
Hydrogels
Cartilage
lubrication
Lubrication
load carrying capacity
Thawing
fluid pressure
evaluation
Hydrogel
biomimetics
Biomimetics
Load limits
durability
Water content
drying
moisture content
fluid flow
casts
Flow of fluids

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this

Evaluation of a superior lubrication mechanism with biphasic hydrogels for artificial cartilage. / Murakami, Teruo; Sakai, Nobuo; Yamaguchi, Tetsuo; Yarimitsu, Seido; Nakashima, Kazuhiro; Sawae, Yoshinori; Suzuki, Atsushi.

In: Tribology International, Vol. 89, 01.09.2015, p. 19-26.

Research output: Contribution to journalArticle

Murakami, Teruo ; Sakai, Nobuo ; Yamaguchi, Tetsuo ; Yarimitsu, Seido ; Nakashima, Kazuhiro ; Sawae, Yoshinori ; Suzuki, Atsushi. / Evaluation of a superior lubrication mechanism with biphasic hydrogels for artificial cartilage. In: Tribology International. 2015 ; Vol. 89. pp. 19-26.
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