Improved bioactivity properties of SiO2-CaO-P2O5 glasses by using calcium l

Add time:08/07/2019    Source:sciencedirect.com

In this work, SiO2-CaO-P2O5 based bioactive glasses were synthesized by the sol-gel method using calcium l-lactate pentahydrate and calcium nitrate tetrahydrate (CaNT) as calcium oxide precursors in order to achieve an improvement of the material bioactivity. The obtained samples were characterized by X-ray diffraction (XRD), FT-IR spectroscopy and scanning electron microscopy, then they were assessed from the perspective of their bioactive properties, while the textural properties were evaluated by Brunauer-Emmett-Teller method. The XRD pattern confirms the amorphous structure for all samples, except the glass synthesized with CaNT, where few crystallization centres associated with apatite phase were identified. A higher specific surface area and pore volume were obtained for the glasses prepared with calcium l-lactate pentahydrate in comparison with those obtained by using CaNT, result that was expected to be favorable in terms of bioactivity. The in vitro bioactivity assessment revealed the occurrence of a more pronounced apatite layer onto the glass' surfaces prepared with calcium l-lactate pentahydrate than as for the samples obtained with CaNT.

We also recommend Trading Suppliers and Manufacturers of Calcium nitrate tetrahydrate (cas 13477-34-4). Pls Click Website Link as below: cas 13477-34-4 suppliers

Prev:Facile route to obtain a highly bioactive SiO2–CaO–Na2O–P2O5 crystalline powder
Next:Electrochemical production of perchlorate as an alternative for the valorization of brines)