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Effect of Water on Mechanical Properties of Mineralized Tissue Composites

Published online by Cambridge University Press:  26 February 2011

Amanpreet Kaur Bembey ,
Michelle L Oyen ,
Virginia L. Ferguson ,
Andrew J. Bushby  and
Alan Boyde
Amanpreet Kaur Bembey
Affiliation:
a.k.bembey@qmul.ac.uk, Queen Mary, University of London, Department of Materials, Mile End Road, London, E1 4NS, United Kingdom
Michelle L Oyen
Affiliation:
mlo29@cam.ac.uk, Queen Mary, University of London, Department of Materials, Mile End Road, London, E1 4NS, United Kingdom
Virginia L. Ferguson
Affiliation:
Virginia.Ferguson@colorado.edu, University of Colorado, Department of Mechanical Engineering, Boulder, CO, 80309, United States
Andrew J. Bushby
Affiliation:
a.j.bushby@qmul.ac.uk, Queen Mary, University of London, Department of Materials, Mile End Road, London, E1 4NS, United Kingdom
Alan Boyde
Affiliation:
a.boyde@qmul.ac.uk, Queen Mary, University of London, Oral Growth and Development, London, E1 1BB, United Kingdom
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Abstract

In the current study, the effects of polar solvents on tissue volume and mechanical properties are considered. Area shrinkage measurements are conducted for mineralized, bone tissue samples soaked in polar solvents. Area shrinkage is used to calculate approximate linear and volume shrinkage. Results are compared with viscoelastic mechanical parameters for bone in the same solvents (as measured previously) and with both shrinkage measurements and mechanical data for nonmineralized tissues, as taken from the existing literature. As expected, the shrinkage of mineralized tissues is minimal when compared with shrinkage of nonmineralized tissues immersed in the same polar solvents. The mechanical changes in bone are also substantially less than in nonmineralized tissues. The largest stiffness values are found in shrunken bone samples (immersed in acetone and ethanol). The mineral phase in bone thus resists tissue shrinkage that would otherwise occur in the pure soft tissue phase.

Keywords

viscoelasticitybonecomposite
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 975: Symposium DD – Mechanics of Biological and Bio-Inspired Materials , 2006 , 0975-DD09-04
Copyright
Copyright © Materials Research Society 2007

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References

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