Natural articular joints : model of lamellar-rollerbearing lubrication and the nature of the cartilage surface
Pawlak, Zenon, Urbaniak, Wieslaw, & Oloyede, Adekunle (2013) Natural articular joints : model of lamellar-rollerbearing lubrication and the nature of the cartilage surface. In Davim, J. Paulo (Ed.) Biomaterials and Medical Tribology : Research and Development. Woodhead Publishing Limited, pp. 253-310.
The influence of pH on interfacial energy and wettability distributed over the phospholipid bilayer surface were studied, and the importance of cartilage hydrophobicity (wettability) on the coefficient of friction (f) was established. It is argued that the wettability of cartilage signifi antly depends on the number of phospholipid bilayers acting as solid lubricant; the hypothesis was proven by conducting friction tests with normal and lipid- depleted cartilage samples. A lamellar-roller-bearing lubrication model was devised involving two mechanisms:
(i) lamellar frictionless movement of bilayers, and (ii) roller-bearing lubrication mode through structured synovial fluid, which operates when lamellar spheres, liposomes and macromolecules act like a roller-bearing situated between two cartilage surfaces in effective biological lubrication.
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|Item Type:||Book Chapter|
|Keywords:||joint lubrication, surface amorphous layer, cartilage, hydrophobicity, hydrophilicity, phospholipid, bilayer, wettability, coeffi cient of friction, lamellar-roller-bearing|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomechanical Engineering (090302)
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2013 Woodhead Publishing Limited|
|Deposited On:||26 Jun 2013 03:36|
|Last Modified:||22 Oct 2015 16:25|
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