Synthesis, bioactivity and preliminary biocompatibility studies of glasses in the system CaO-MgO-SiO2-Na2O-P2O5-CaF2

被引：40
|
作者：
Tulyaganov, D. U. [1 ]
Agathopoulos, S. [2 ]
Valerio, P. [3 ]
Balamurugan, A. [1 ]
Saranti, A. [2 ]
Karakassides, M. A. [2 ]
Ferreira, J. M. F. [1 ]
机构：
[1] Univ Aveiro, Dept Ceram & Glass Engn, CICECO, P-3810193 Aveiro, Portugal
[2] Univ Ioannina, Dept Mat Sci & Engn, GR-45110 Ioannina, Greece
[3] Univ Fed Minas Gerais, Dept Physiol & Biophys, ICB UFMG, BR-31270901 Belo Horizonte, MG, Brazil
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE | 2011年 / 22卷 / 02期
关键词：
OSTEOBLAST-LIKE CELLS; SIMULATED BODY-FLUID; APATITE FORMATION; CAO-MGO-SIO2; SYSTEM; P2O5; ADDITIVES; IN-VITRO; PHOSPHATE; HYDROXYAPATITE; CERAMICS; BEHAVIOR;
D O I：
10.1007/s10856-010-4203-5
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
New compositions of bioactive glasses are proposed in the CaO-MgO-SiO2-Na2O-P2O5-CaF2 system. Mineralization tests with immersion of the investigated glasses in simulated body fluid (SBF) at 37A degrees C showed that the glasses favour the surface formation of hydroxyapatite (HA) from the early stages of the experiments. In the case of daily renewable SBF, monetite (CaHPO4) formation competed with the formation of HA. The influence of structural features of the glasses on their mineralization (bioactivity) performance is discussed. Preliminary in vitro experiments with osteoblasts' cell-cultures showed that the glasses are biocompatible and there is no evidence of toxicity. Sintering and devitrification studies of glass powder compacts were also performed. Glass-ceramics with attractive properties were obtained after heat treatment of the glasses at relatively low temperatures (up to 850A degrees C).
引用
收藏
页码：217 / 227
页数：11
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