The bioactivity, i.e., bone-bonding ability, of 26 glasses in the system Na 2 O-K 2 O-MgO-CaO-B 2 O 3 -P 2 O 5 -SiO 2 was studied in vivo. This investigation of bioactivity was performed to establish the compositional dependence of bioactivity, and enabled a model to be developed that describes the
Effect of the substitution of La2O3 for CaO on the bioactivity of 2.5CaO � 2SiO2 glass
✍ Scribed by Fresa, R. ;Costantini, A. ;Buri, A. ;Branda, F.
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 402 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0021-9304
No coin nor oath required. For personal study only.
✦ Synopsis
Glasses of the following composition were prepared: layer appears to be increasingly thinner with increasing
(2.5-x)Ca0 . x/3La203 . 2Si02 (0 5 x 5 1). Their behavior amounts of La203 substituted. The experimental results are in when soaked in a simulated body fluid (SBF) was studied good agreement with mechanisms reported in the literature. by means of electron microscopy (EM) equipped with an Moreover they suggest that lanthanum oxide is retained in energy-dispersive system (EDS) for elemental analysis, IR the layer below the phosphate. After 6 days of soaking, crysspectroscopy, and x-ray diffraction. All the studied glasses talline hydroxyapatite is formed in the case of La20, free react with SBF by forming a calcium phosphate layer. This glass.
📜 SIMILAR VOLUMES
Glasses in the system SiO 2 -CaO-P 2 O 5 -MgO were prepared by the sol-gel method. These glasses featured SiO 2 contents in the range 60-80 mol %, 4 mol % of P 2 O 5 , and a CaO/MgO molar ratio of 4. Because of their composition and surface properties, all the glasses showed in vitro bioactivity, as
A series of beta zeolites with various ratios has been syn-SiO 2 /Al 2 O 3 thesized. These samples were characterized with respect to crystallinity, particle size, acidity and sorption capacities of water, n-hexane and cyclohexane. The conversion of 1,3,5-trimethylbenzene (TrMB) was conducted in a Ð
Multilayered coatings composed of mixtures of hydroxyapatite (HA) and P 2 O 5 -based bioactive glasses offer potential clinical benefits in orthopedic and dental surgery. In this study double-layer plasma-sprayed coatings were prepared and the biological response evaluated in tissue culture using tw