Elaboration biphasic calcium phosphate nanostructured powders
Boletín de la Sociedad Española de Cerámica y Vidrio(2015)
Abstract
Nanostructured calcium phosphate and biphasic calcium phosphates have been studied and stand out as biomaterials for bone regeneration. This is due to the fact that thesebiomaterials present bioactivity and morphological, chemical and crystallographic similarities to the bone apatite. The aim of the present work has been the synthesis and characterization of two calcium phosphates with Ca/P=1.5 e 1.67 as molar ratio. These were synthesized through the chemical wet process. After synthesis, the hydrated calcium phosphate powders were subsequently calcined at temperatures of 900°C/2h providing b-calcium phosphate (b-TCP) and hydroxyapatite (HA) powders. These powders were used to elaborate the biphasic powders in the wt.% ratios HA/b-TCP as follows: 80/20, 20/80, 70/30 and 30/70. The method used for the elaboration of the b-tricalcium phosphate nanostructured powder, hydroxyapatite and biphasic compositions was the attrition milling. The nanostructured powders obtained were characterized by the scanning electron microscopy technique, X-ray diffractometry. Infrared spectroscopy and Specific surface using BET model.
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Key words
Synthesis,Calcium Phosphate,Hydroxyapatite,Biphasic,Biomaterial
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