Preparation and Characterization of Hydroxyapatite Nanopowders Doped with Silver Ions
نویسندگان
چکیده
Silver doped hydroxyapatite was prepared by the precipitation method, using the precursor of hydroxyapatite, CaCl2-0.5M and (NH4) 2HPO4-0.3M; silver sulfate (Ag2SO4) is added to the precursors in order to bring the ions of silver (Ag at 10%) in the structure of hydroxyapatite. The morphology, structure and composition of prepared samples were characterized by X-ray diffraction, the complex thermal analysis, electron microscopy coupled with energy dispersion X-ray spectroscopy and transmission electron microscopy. Nanometric particles of silver doped hydroxyapatite ions were obtained by replacing calcium ions in its structure. Adding silver to hydroxyapatite as a functional group can play an important role in attaching other macromolecules to the surface of biomaterials and also may present special antibacterial properties.
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