Sol gel derived SiO2-CaO-MgO-P2O5 bioglass system-preparation and in vitro characterization

abstract

The synthesis Of SiO2-CaO-MgO-P2O5 bioactive glass was carried out by the sol-gel method. Sol-gel derived bioglass material was crushed into powder to produce pellet disks by uniaxial pressing, followed by sintering at 900 degrees C. The biocompatibility evaluation of the formed glass was assessed through in vitro cell culture experiments and immersion studies in simulated body fluid (SBF) for different time intervals while monitoring the pH changes and the concentration of calcium and magnesium in the SBF medium. Scanning electron microscopy, X-ray energy dispersive spectroscopy, X-ray diffraction analysis, and FT-IR spectroscopy studies were conducted before and after contact of the material with SBF. At first, an amorphous calcium phosphate was formed; after 21 days this surface consisted of deposited crystalline spheres of apatite. The present investigation also revealed that the sol-gel derived quaternary bioglass system has the ability to support the growth of osteoblast-like cells in vitro and to promote osteoblast differentiation by stimulating the expression of major phenotypic markers. (C) 2007 Wiley Periodicals, Inc.

keywords

BIOACTIVE GLASS; CAO-SIO2 SYSTEM; POWDERS; CAO-P2O5-SIO2; SURFACE; REPAIR; TISSUE

subject category

Engineering; Materials Science

authors

Balamurugan, A; Ballossier, G; Michel, J; Kannan, S; Benhayoune, H; Rebelo, AHS; Ferreira, JMF

our authors

Share this project:

Related Publications

We use cookies for marketing activities and to offer you a better experience. By clicking “Accept Cookies” you agree with our cookie policy. Read about how we use cookies by clicking "Privacy and Cookie Policy".