Studies Concerning the Synthesis and Characterization of Hydroxyapatite Powder

Gurgui-Ionescu Cătălina1, Balosache Oana2, Mocanu Adriana2, Flori Cornelia2, Moga S.3, Ducu C.3,
Neamțu J.2

1 University of Craiova
2 University of Medicine and Pharmacy, Craiova
3 Research Centre for Advanced Materials, University of Pitesti

Introduction: Recently, a special attention was given to the growth of some biomaterials with the goal of renewal and/or reconstruction of bone tissue. Of these biomaterials, hydroxyapatite (HA) presents a series of properties such as biocompatibility and bioactivity, being frequently used for bone grafts realization and to cover some metallic components of some prosthesis used in orthopedics. Although HA is available on the market as synthetic material for more than 15 years, being used for ceramic implants for more than 10 years, new solutions are looked for the inclusion in its structure of some anionic or cationic substitutes in order to bring its composition closer to the biologic apatite.
Aim: The aim of this study was to synthetise and characterize hydroxyapatite powder.
Method: Of the synthesis methods of HA, we used the wet-precipitation method. The obtained compound using this method was characterized by X-ray diffraction (XRD), FTIR microspectroscopy and laser difractometry.
Results: The XRD spectra showed that the obtained material is HA and we managed to establish the optimum parameters for obtaining HA uncontaminated by impurities and crystalline.
Conclusions: Using a method of chemical synthesis through precipitation, we obtained a HA powder, crystalline and stoechiometric.

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