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Anisotropy in the compressive mechanical properties of bovine cortical bone and the mineral and protein constituents

Paper ID Volume ID Publish Year Pages File Format Full-Text
1019 71 2011 8 PDF Available
Title
Anisotropy in the compressive mechanical properties of bovine cortical bone and the mineral and protein constituents
Abstract

The mechanical properties of fully demineralized, fully deproteinized and untreated cortical bovine femur bone were investigated by compression testing in three anatomical directions (longitudinal, radial and transverse). The weighted sum of the stress–strain curves of the treated bones was far lower than that of the untreated bone, indicating a strong molecular and/or mechanical interaction between the collagen matrix and the mineral phase. Demineralization and deproteinization of the bone demonstrated that contiguous, stand-alone structures result, showing that bone can be considered an interpenetrating composite material. Structural features of the samples from all groups were studied by optical and scanning electron microscopy. Anisotropic mechanical properties were observed: the radial direction was found to be the strongest for untreated bone, while the longitudinal one was found to be the strongest for deproteinized and demineralized bones. A possible explanation for this phenomenon is the difference in bone microstructure in the radial and longitudinal directions.

Keywords
Anisotropy; Cortical bone; Compression; Demineralization; Deproteinization
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Anisotropy in the compressive mechanical properties of bovine cortical bone and the mineral and protein constituents
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 7, Issue 8, August 2011, Pages 3170–3177
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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