Influences of synovia constituents on frictional behavior of artificial cartilage material and formation of boundary lubricating film

Seido Yarimitsu, Kazuhiro Nakashima, Yoshinori Sawae, Teruo Murakami

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Frictional behavior of poly (vinyl alcohol)(PVA) hydrogel as artificial articular cartilage was examined in reciprocating motion in lubricants that contain albumin, γ-globulin, L-α dipalmitoyl phosphatidylcholine (DPPC) and hyaluronic acid (HA). Influences of synovia constituents on forming boundary film and boundary lubrication ability for PVA hydrogel were investigated by in situ fluorescent observation on forming boundary film, atomic force microscopy and infrared spectroscopy. Under the coexistence of proteins and DPPC, DPPC contributed to reduce friction of PVA hydrogel. Albumin-DPPC composite film and smooth film formed by DPPC especially reduced friction. When HA and DPPC coexist in the lubricants, HA-DPPC composite film with micron-ordered pattern was formed and it reduced friction remarkably. Through the researches on the influences of synovia constituents on boundary lubricating ability for PVA hydrogel, it was shown that albumin and DPPC function as low shearing resistance components in boundary film and γ-globulin has ability to stabilize boundary film and enhances the formation of boundary film. HA has high ability of water retention and plays a part in reduction of friction and enhancement of forming boundary film that has the characteristics of gel-like layer.

Original languageEnglish
Pages (from-to)489-498
Number of pages10
JournalToraibarojisuto/Journal of Japanese Society of Tribologists
Volume55
Issue number7
Publication statusPublished - 2010

Fingerprint

1,2-Dipalmitoylphosphatidylcholine
cartilage
Cartilage
Hyaluronic acid
Hydrogel
Hydrogels
Hyaluronic Acid
Friction
friction
globulins
albumins
Albumins
Composite films
Globulins
acids
Lubricants
lubricants
boundary lubrication
Shearing
composite materials

All Science Journal Classification (ASJC) codes

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

Cite this

Influences of synovia constituents on frictional behavior of artificial cartilage material and formation of boundary lubricating film. / Yarimitsu, Seido; Nakashima, Kazuhiro; Sawae, Yoshinori; Murakami, Teruo.

In: Toraibarojisuto/Journal of Japanese Society of Tribologists, Vol. 55, No. 7, 2010, p. 489-498.

Research output: Contribution to journalArticle

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