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http://dx.doi.org/10.6111/JKCGCT.2010.20.5.237

Suitability evaluation of magnesium substituted biphasic calcium phosphates prepared by coprecipitation method  

Lee, Hyoung-Sin (School of Materials Science Engineering, Pusan National University)
Kim, Tae-Wan (School of Materials Science Engineering, Pusan National University)
Kim, Dong-Hyun (School of Materials Science Engineering, Pusan National University)
Park, Hong-Chae (School of Materials Science Engineering, Pusan National University)
Yoon, Seog-Young (School of Materials Science Engineering, Pusan National University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.20, no.5, 2010 , pp. 237-242 More about this Journal
Abstract
Magnesium-substituted BCP (biphasic calcium phosphate) powders were prepared by incorporating small amounts of magnesium into the structure of different hydroxyapatite (HAp)/${\beta}$-tricalcium phosphate (${\beta}$-TCP) ratios through coprecipitation method. A series of magnesium substitutions ranging from 0, 0.5, and 1.0 wt%, which are comparable to the measured magnesium contents, were performed. The obtained powders were characterized by the following analytical techniques: X-ray diffraction analysis (XRD), Thermo Gravimetric Analyzer (TGA) and Fourier transform infrared spectroscopy (FT-IR). The results have shown that substitution of magnesium in the calcium-deficient apatites resulted in the formation of biphasic mixtures of different HAP/${\beta}$-TCP ratios after heating above $1000^{\circ}C$. The 1.0 wt% magnesiumsubstituted-BCP were soaked in Hank's solutions after 2 weeks to observe the morphology of the biocement, especially needle-like hydroxyapatite crystals and to estimate the length and diameter of nanoneedle crystals.
Keywords
Magnesium; Biphasic calcium phosphate; Hydroxyapatite; ${\beta}$-Tricalcium phosphate;
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