Synthesis and physicochemical inverstigation of hydroxyapatite and wollastonite composite granules

Abstract

Creation of osteoinductive materials based on biocompatible synthetic salts, with a sufficiently high strength and porosity, with the shape which allow filling bone defects with various shapes and sizes is an actual task of modern biomaterial science. In this work, a series of granular materials were obtained from synthetic powders with various proportions of hydroxyapatite and wollastonite using a suspension technology based on the principle of immiscible liquids. Ceramic particles have a spherical shape, microhardness at least 17 HV and open porosity about 50 %. These materials can be used for reparation of bone defects of various locations, shapes and sizes in surgical dentistry, traumatology and orthopaedics.

Investigation of the process and products of calcination of composite granules based on hydroxyapatite, wollastonite and gelatine

“…In this work, spherical granules obtained by suspension technology [5] from synthetic ceramic powders with a variable content of HA and WT [6] (80/20, 60/40, 40/60 or 20/80 wt.% HA and WT, respectively) and gelatine (a binder polymer) were investigated. Gravimetric analysis of materials was performed using a muffle furnace «EKPS-5» (Smolensk SKTB SPU).…”

Microstructure of spherical granules based on hydroxyapatite and wollastonite

“…In this work, granules were synthesized by the suspension technology [10]. Synthetic ceramic powders with a variable content of hydroxyapatite and wollastonite (WT, CaSiO 3 ) [11] were used in the granules synthesis.…”