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Influences of organic component on mechanical property of cortical bone with different water content by nanoindentation

Authors :
Xingdong Sun
Lijia Li
Yue Guo
Hongwei Zhao
Shizhong Zhang
Yang Yu
Di Wu
Hang Liu
Miao Yu
Dong Shi
Zeyang Liu
Mingxing Zhou
Luquan Ren
Lu Fu
Source :
AIP Advances, Vol 8, Iss 3, Pp 035003-035003-15 (2018)
Publication Year :
2018
Publisher :
AIP Publishing LLC, 2018.

Abstract

The phenomenon that water in bone has important influences on mechanical properties of cortical bone has been known. However, the detail of the influence mechanism is not clear, especially in the component hierarchy. The main objective of this paper is to investigate the mechanical properties of deproteinization bone and cortical bone with different water content by nanoindentation experiments. The deproteinization bone is cortical bone removed organic component, and demineralization bone is cortical bone removed inorganic component. The experiments results showed that the elastic modulus and hardness all increased with the decreasing of water content in both cortical bone and deproteinization bone. However, variations of deproteinization bone were more significant than the normal one. Without organic component, the shape and size of inorganic component (hydroxyapatite particles) turned to irregular. The plastic energy of both cortical bone and deproteinization bone all decreased with the decreasing of water content and the variations range of deproteinization bone was wider than cortical bone. This research may give some deeply understanding for the studies of influence of water on mechanical properties of cortical bone.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
21583226
Volume :
8
Issue :
3
Database :
Directory of Open Access Journals
Journal :
AIP Advances
Publication Type :
Academic Journal
Accession number :
edsdoj.bbed7e8476ce4c60802d653af36d786f
Document Type :
article
Full Text :
https://doi.org/10.1063/1.5017807