Abstract

The co-precipitation of calcium hydroxyapatite Ca10(PO4)6(OH)2 (HA) and natural biopolymer, potassium alginate (PA) [C6H7KO6]n, from an aqueous solution of the CaCl2–(NH4)2HPO4–NH3–[C6H7KO6]n–H2O system (25оC) was used to synthesize HA/PA organomineral composites based on nanocrystalline HA containing 0.1, 0.2, 0.3, and 0.4 wt % PA. The synthesis products were identified by powder X-ray diffraction, thermal analysis, infrared spectroscopy, scanning and transmission electron microscopy, and electron spectroscopy for chemical analysis.

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