Deakin University
Browse
greene-cartilageinspired-2014.pdf (808.42 kB)

A cartilage-inspired lubrication system

Download (808.42 kB)
journal contribution
posted on 2014-01-01, 00:00 authored by Wren Greene, A Olszewska, M Osterberg, Haijin Zhu, Roger Horn
Articular cartilage is an example of a highly efficacious water-based, natural lubrication system that is optimized to provide low friction and wear protection at both low and high loads and sliding velocities. One of the secrets of cartilage's superior tribology comes from a unique, multimodal lubrication strategy consisting of both a fluid pressurization mediated lubrication mechanism and a boundary lubrication mechanism supported by surface bound macromolecules. Using a reconstituted network of highly interconnected cellulose fibers and simple modification through the immobilization of polyelectrolytes, we have recreated many of the mechanical and chemical properties of cartilage and the cartilage lubrication system to produce a purely synthetic material system that exhibits some of the same lubrication mechanisms, time dependent friction response, and high wear resistance as natural cartilage tissue. Friction and wear studies demonstrate how the properties of the cellulose fiber network can be used to control and optimize the lubrication and wear resistance of the material surfaces and highlight what key features of cartilage should be duplicated in order to produce a cartilage-mimetic lubrication system.

History

Journal

Soft matter

Volume

10

Pagination

374 - 382

Location

London, England

Open access

  • Yes

ISSN

1744-683X

eISSN

1744-6848

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2014, Royal Society of Chemistry