Synthesis and characterization of strontium-doped hydroxyapatite powder via sol-gel method
Document Type
Article
Publication Date
1-1-2008
Abstract
Improvement of the mechanical properties of hydroxyapatite (HA) can be achieved by the incorporation of metal. In addition, incorporation of strontium ion into HA crystal structures has been proved effective to enhance biochemical properties of bone implant. In this research, strontium-doped HA powder was developed via a sol-gel method to produce extraordinarily fine strontium-doped HA (Sr-doped HA) powder. XRD measurement had shown that the powder contained hydroxyapatite phase only for all doping concentration except for 2, showing that Sr atoms have suppressed the appearance of beta-TCP as the secondary phase. Morphological evaluation by FESEM measurement shows that the particles of the Sr-doped HA agglomerates are globular in shape with an average size of 1-2 microm in diameter while the primary particles have a diameter of 30-150 nm in average.
Keywords
Gels Humans Hydroxyapatites/*chemistry *Phase Transition Powders/chemistry Strontium/*chemistry
Divisions
fac_eng
Publication Title
Medical Journal of Malaysia
Volume
63
Publisher
Malaysian Medical Association