Imperial College London

DrJanetWong

Faculty of EngineeringDepartment of Mechanical Engineering

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 8991j.wong

 
 
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Location

 

671City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Parkes:2015:10.1016/j.biotri.2015.05.001,
author = {Parkes, M and Myant, C and Cann, PM and Wong, JSS},
doi = {10.1016/j.biotri.2015.05.001},
journal = {Biotribology},
pages = {51--60},
title = {Synovial fluid lubrication: The effect of protein interactions on adsorbed and lubricating films},
url = {http://dx.doi.org/10.1016/j.biotri.2015.05.001},
volume = {1-2},
year = {2015}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - © 2015 Elsevier Ltd. All rights reserved. Synovial fluid lubrication is dependent on protective protein films that form between joint surfaces. Under static conditions surface film formation occurs through adsorption, while under dynamic conditions protein aggregation under shear and load becomes the dominant mechanism. This work examines how the protein content of six model synovial fluids affects film formation under static and rolling conditions and if the changes in properties can be correlated. With an increase in the statically adsorbed mass and the rate of adsorption the film thickness under rolling increased. These increases did not correlate with the total protein content of the fluid, but were dependent on the type of protein. An increase in pH reduced the adsorbed mass, rate of adsorption and film thickness, but was of secondary importance to the type of protein. The rolling film thickness was also correlated with the viscoelastic properties of the films formed under static conditions. In this case thinner rolling films corresponded to the more hydrated, viscoelastic adsorbed films. The strong correlations found between the properties of the adsorbed films and those formed under rolling indicate that the same protein-protein and protein-surface interactions may govern both mechanisms of film formation despite the differences in the film structures.
AU - Parkes,M
AU - Myant,C
AU - Cann,PM
AU - Wong,JSS
DO - 10.1016/j.biotri.2015.05.001
EP - 60
PY - 2015///
SN - 2352-5738
SP - 51
TI - Synovial fluid lubrication: The effect of protein interactions on adsorbed and lubricating films
T2 - Biotribology
UR - http://dx.doi.org/10.1016/j.biotri.2015.05.001
UR - http://hdl.handle.net/10044/1/25968
VL - 1-2
ER -