Study of Mg-Hydroxyapatite Composite with various composition of Hydroxyapatite which obtained From Cow Bones in Simulation Body Fluid (SBF)

2/7/2019 12:00:00 AM

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Authors: Jojor Lamsihar Manalu, Bambang Soegijono, Decky Jusiana Indrani

Publication date: August 2016

Asian Journal of Applied Sciences

Volume 04 – Issue 04

Link: Asian Online Journals (www.ajouronline.com)

 

 

ABSTRACT— The objective of the present study was to synthesize biodegradable Mg-hydroxyapatite (Mg-HAp) composites for bone replacement. Hydroxyapatite (HAp) powders were synthesized from bioresources cow bone in a cost effective and ecofriendly way. Cow bone was converted to hydroxyapatite by a heat treatment method at different temperatures. Hydroxyapatite was  characterized by  X-ray  diffraction (XRD)  and  scanning  electron  microscope (SEM), Energy Dispersive X-Ray spectroscopy (EDX) and FT-IR. The results show a uniform distribution of HAp with a crystal size range of 400-800 nm. The Mg–HAp composites were prepared by mixing different amounts of HAp powders to Mg  powder and  finally the  powder was pressed to make samples. The microstructure of Mg–HAp composite was examined by optical microscope (OM).The results show a uniform distribution of HAp particles  along the boundary between matrix particles.. The relative densities of the composites initially increased with increase the amount of HA addition. The theoretical and experimental hardness of the composites are compared with  the addition of  3 to 9 wt%  HAp. Addition of HAp decreases the crystal size of the nanocomposites. The mechanical properties, i.e. hardness is evidently increased with increasing HAp content up to 5 wt%.

Keywords— Magnesium, hydroxyapatite from cow bone, composites