Spontaneous fabrication of octacalcium phosphate: synthesis conditions and basic characterizations

Octacalcium phosphate (OCP), an encrusted calcium phosphate complex, has appealed consideration in the field of biomaterial and apothecary, owing to its exceptional biocompatibility. However, not much is known about the effect of Na ion for the formation of OCP, irrespective of pH. Consequently, in this study, we considered the part of the Na ion in OCP growth from dicalcium phosphate dihydrate (DCPD) via hydrolysis by using 0.1 M CH3COONa solutions with adjustment of various pH. Novelty of the study is, expending this way we can synthesize OCP irrespective of pH and most importantly at 37°C, which is an important parameter for acceptable biomaterials. Throughout the study, no foreign phase was observed except OCP. Morphological images are also evident for the attractive OCP flowers.