TY - JOUR
T1 - Evaluation of a superior lubrication mechanism with biphasic hydrogels for artificial cartilage
AU - Murakami, Teruo
AU - Sakai, Nobuo
AU - Yamaguchi, Tetsuo
AU - Yarimitsu, Seido
AU - Nakashima, Kazuhiro
AU - Sawae, Yoshinori
AU - Suzuki, Atsushi
N1 - Funding Information:
Financial support was given by the Grant-in-Aid for Specially Promoted Research of Japan Society for the Promotion of Science : KAKENHI ( 23000011 ).
PY - 2015/9
Y1 - 2015/9
N2 - 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.
AB - 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.
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U2 - 10.1016/j.triboint.2014.12.013
DO - 10.1016/j.triboint.2014.12.013
M3 - Article
AN - SCOPUS:84948394884
VL - 89
SP - 19
EP - 26
JO - Tribology International
JF - Tribology International
SN - 0301-679X
ER -