engleski

SILICON-SUBSTITUTED CALCIUM PHOSPHATES FOR BONE TISSUE ENGINEERING APPLICATIONS

Silicon-substituted calcium phosphate (CP) powders were prepared by wet precipitation method, at 50°C, using CaCO3, (NH2)2CO-H3PO4), and Si(OCH2CH3)4 as reagents. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and Rietveld refinement were used to characterize the samples. The raw precipitated powders were composed of carbonated hydroxyapatite and octacalcium phosphate. After heat treatment at 1200°C well crystalline phases of β-tricalcium phosphate (β-TCP, Ca3(PO4)2) and α-tricalcium phosphate (α-TCP) were detected.

hydroxyapatite, octacalcium phosphate, tricalcium phosphates, silicon

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