Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 111, Issue 2-3, Pages 497-502Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2008.04.055
Keywords
bioactive glass; particles; in vitro test; fluid circulation; SBF
Categories
Funding
- Finnish Funding Agency for Technology and Innovation
Ask authors/readers for more resources
The influence of circulation of simulated body fluid (SBF) on the in vitro behavior of glass particles (500-800 mu m) was studied for seven glasses by measuring in situ pH inside the particle beds at 37 degrees C. Reaction layers on particle surfaces were characterized with SEM/EDXA. Differences in the tendency to form reaction layers on surfaces at different locations in the particle beds were determined using samples, with interconnected porosity prepared by sintering the particles. Circulation of the solution above the particle bed affected strongly the in vitro behavior of the particles. Due to poor diffusion, the static conditions led to high pH in the SBF within the particle beds and uneven layer formation on the particles. Fluid circulation above the particle beds resulted in a homogenous environment lacking the pronounced pH gradients seen in the static system. The reaction layers on the particles were uniform but thin in the circulating conditions. (C) 2008 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available