Crystal Research and Technology
Cryst. Res. Technol. 37 (2002) 1165 - Abstract -

E. Kontonasaki, T. Zorba*, L. Papadopoulou*, E. Pavlidou*, X. Chatzistavrou*, K. Paraskevopoulos*, P. Koidis

Aristotle University of Thessaloniki, Department of Fixed Prosthesis and Implants Prosthodontics, Dental School , 54124 Thessaloniki, Greece
*Aristotle University of Thessaloniki, Department of Physics, 54124 Thessaloniki, Greece

Hydroxy Carbonate Apatite Formation on Particulate Bioglass In Vitro as a Function of Time

The mechanism of bonding of bioactive glasses with living tissues has been reported to be associated with the development of a layer consisting of carbonate-containing hydroxyapatite similar to that of bone on the surface of the materials. This layer is also formed in vitro, in solutions with ion concentrations similar to those of human blood plasma, like SBF (Simulated Body Fluid). The development of HCAp (Hydroxy carbonate apatite) layer on the surface of a commercially available Bioglass® Synthetic Bone Graft Particulate (Perioglas®) after immersion in SBF solution using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) with associated Energy Dispersive Spectroscopy (EDS). PerioGlas® powder with particle size 20-63μm, pressed in a vacuum press in order to produce pellets. The pellets were soaked in SBF for 12, 18, 24 and 48 hours at 37°C. Results revealed the formation of an amorphous CaO-P2O5- rich layer on the surface of the specimens after 12 hours in the solution and a well crystalline HCAp layer after 24 hours immersion time.

Keywords: Perioglas®, bioglass powder, simulated body fluid, FTIR, SEM-EDS


The full text of this paper in pdf-Format:

If you came directly to this page, click this symbol to go to the homepage of CRT.