Hydrothermal Synthesis of Si-doped Hydroxyapatite Nanopowders: Mechanical and Bioactivity Evaluation

abstract

Si-doped hydroxyapatite nanoparticles (n-Si(x)HA) were prepared by hydrothermal synthesis from calcium nitrate tetrahydrate and diammonium hydrogen orthophosphate. A rod-like morphology was obtained for all the powders irrespective of the incorporated Si-doping level. But the crystallinity of the n-Si(x)HA powders, the density achieved upon sintering powder compacts and their mechanical properties (three-point-bending strength), as well as their biomineralization activity evaluated by immersing them into simulated body fluid (SBF) were found to be dependent on the Si-doping amount.

keywords

SILICON-SUBSTITUTED HYDROXYAPATITE; IN-VITRO; BIOMEDICAL APPLICATIONS; THERMAL-STABILITY; THIN-FILMS; BONE; CA-10(PO4)(6-X)(SIO4)(X)(OH)(2-X); SURFACTANT; DEPOSITION; COMPOSITE

subject category

Materials Science

authors

Belmamouni, Y; Bricha, M; Ferreira, J; El Mabrouk, K

our authors

acknowledgements

This work was funded by Moroccan Foundation for Advanced Science, Innovation and Research (MAS-CIR). The support from CICECO is also greatly appreciated.

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