Surface reaction layer formationin vitro on a bioactive glass fiber/polymeric composite
✍ Scribed by Marcolongo, Michele ;Ducheyne, Paul ;LaCourse, William C.
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 175 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0021-9304
No coin nor oath required. For personal study only.
✦ Synopsis
In order to provide a fixation vehicle between a tion of a calcium phosphate layer on the surface of the glass polymeric composite femoral hip prosthesis and bone tissue, fibers within the composite material after immersion in both we fabricated bioactive glass fibers. The glass fibers had a protein-free and protein-containing simulated body fluids. tensile strength of 596 MPa, 14 times that of bulk bioactive
The rate of reaction layer formation was reduced in the presglass. After immersion in protein-free simulated body fluid ence of proteins. In both protein-free and protein-containing for 10 days, we observed the development of a calcium phos-solutions, a ''halo'' of bioactivity reactions was observed on phate layer (specifically, partially crystallized, calcium-defi-the surface of the polymer in regions surrounding the glass cient carbonated hydroxyapatite) on the surface of the glass fibers. Our results suggest these glass fibers and glass fiber fibers. The stages of the surface reaction layer formation were composites will exhibit bioactivity reactions in vivo. © 1997 similar to those of 45S5 bioactive glass although the kinetics John Wiley & Sons, Inc. J Biomed Mater Res, 37, 440-448, 1997. of the reaction layer formation were slower. We combined the bioactive glass fibers with a polymeric matrix to form a Key words: bioactive glass; in vitro analysis; bioactive comfiber-reinforced composite material and observed the forma-posite; ''halo'' effect; fiber