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Synthesis of bone-like hydroxyapatite in simulated body fluid

ZHANG Ai-juan   

  1. School of Material Science and Engineering, Shandong University of Technology, Zibo 255049, China
  • Received:2009-10-27 Online:2010-06-16 Published:2009-10-27


Bone-like nanograde hydroxyapatite(HAP)spicula were synthesized in simulated body fluid(SBF)by increasing the concentration of Ca and  P in the  SBF by a biomimetic method. The mass phase composition, chemical composition, micromorphology, thermal stability,  bioactivity and  high temperature  during stability at different sintering temperature 500~1300℃ of the obtained HAP were studied by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscope, differential thermal analysis and  atomic absorption spectrometry. The results indicated that the synthesized HAP had a  pin-like shape close to natural bone with a 70~80nm length and 10~20nm width. Though the degree of crystallization of HAP is better and better with  temperature increasing, the HAP could be decomposed when the sintering temperature is above 1000℃.The synthesized HAP powders have  good ability for inducing the deposition of Ca and P.

Key words: simulated body fluid, hydroxyapatite, biomimetic synthesis, high temperature stability

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