Journal of Inorganic Materials ›› 2011, Vol. 26 ›› Issue (1): 55-60.DOI: 10.3724/SP.J.1077.2011.00055

• Research Paper • Previous Articles     Next Articles

Study on Preparation and Properties of Self-setting Silicon HydroxyapatiteBone Cement

SU Jia-Can, CAO Lie-Hu, YU Bao-Qing, WANG Zhi-Wei, CHEN Xiao, LI Ming   

  1. Department of Orthopaedics,Changhai Hospital, Second Military Medical University, Shanghai 200433, China
  • Received:2010-04-23 Revised:2010-09-03 Published:2011-01-20 Online:2010-12-23
  • Supported by:

    ShanghaiNano-technology Promotion Center and the Science&Technology Committee ofShanghai Municipality (0852nm04300); Talents Project of Shanghai MunicipalPersonnel Bureau (2009003); China's Post-doctoral Science Fund (20100470756)

Abstract: Siliconhydroxyapatite cement (s-HAC) was prepared by using the mixed powders oftetracalcium phosphate and dicalcium phosphate anhydrous, and 5wt% sodiumsilicate water solutions as cement liquid. The results show that the settingtime of s-HAC is shorter than hydroxyapatite cement (HAC), and the compressivestrength of s-HAC is higher than HAC in the same situation. The XRD resultsreveal that the finally hardening product of s-HAC is hydroxyapatite structure,which is similar to that of HAC. The s-HAC in the could release calcium (Ca),phosphorus (P) and silicon (Si) ions. The <>in vitro degradability of s-HACin Tris-HCl solution is better than that of HAC. The cell culture experimentalresults indicate that the cell can attach on both the surfaces of s-HAC andHAC, and have good cell morphology. The optical density (OD) and alkalinephosphate (ALP) activity of MG63 cells on s-HAC are significantlyhigher that that of HAC, indicating that the s-HAC could promote the cellproliferation and differentiation.

Key words: silicon hydroxyapatite, cement, degradation, cell proliferation, differentiation

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