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Depth dependent osmotic and swelling properties ofcartilage

Published online by Cambridge University Press:  12 January 2012

Candida Silva ,
Iren Horkayne-Szakaly ,
Preethi Chandran ,
Emilios K. Dimitriadis ,
David Lin ,
Christopher Papanicolas ,
Peter J. Basser  and
Ferenc Horkay
Candida Silva
Affiliation:
Section on Tissue Biophysics and Biomimetics, Program in Pediatric Imaging and Tissue Sciences, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
Iren Horkayne-Szakaly
Affiliation:
Section on Tissue Biophysics and Biomimetics, Program in Pediatric Imaging and Tissue Sciences, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
Preethi Chandran
Affiliation:
Section on Tissue Biophysics and Biomimetics, Program in Pediatric Imaging and Tissue Sciences, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD 20892, USA
Emilios K. Dimitriadis
Affiliation:
National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD 20892, USA
David Lin
Affiliation:
Section on Tissue Biophysics and Biomimetics, Program in Pediatric Imaging and Tissue Sciences, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
Christopher Papanicolas
Affiliation:
Section on Tissue Biophysics and Biomimetics, Program in Pediatric Imaging and Tissue Sciences, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
Peter J. Basser
Affiliation:
Section on Tissue Biophysics and Biomimetics, Program in Pediatric Imaging and Tissue Sciences, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
Ferenc Horkay
Affiliation:
Section on Tissue Biophysics and Biomimetics, Program in Pediatric Imaging and Tissue Sciences, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
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Abstract

Articular cartilage is a low-friction, load-bearing tissue located at jointsurfaces. It experiences static and dynamic forces including shear,compression and tension. We investigate the relationship between structureand function by measuring the osmotic and mechanical properties in cartilagelayers as a function of the distance from the articular surface. Atomicforce microscopy is used to probe the mechanical properties at high spatialresolution. The mechanical measurements are complemented by osmotic swellingpressure observations made on the same samples using a novel tissueosmometer. The results show that the osmotic modulus significantly dependson the distance from the articular surface. Its value is highest in the deepzone and lowest in the middle zone.

Keywords

biomedicaltissueelastic properties

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1418: Symposium LL/MM – Gels and Biomedical Materials , 2012 , mrsf11-1418-ll03-08
Copyright
Copyright © Materials Research Society 2012

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References

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