材料科学
模拟体液
陶瓷
颗粒
生物活性玻璃
表面改性
化学工程
压实
涂层
烧结
纳米颗粒
银纳米粒子
复合材料
纳米技术
扫描电子显微镜
工程类
作者
Rocío Tejido-Rastrilla,Giovanni Baldi,Aldo R. Boccaccını
标识
DOI:10.1016/j.ceramint.2018.05.198
摘要
We have synthesized a silicate bioactive glass-ceramic (BGC1) in the system SiO2-CaO-Na2O-P2O5-K2O-MgO-CaF2 which was used to fabricate pellets by powder compaction and sintering. The surface of BGC1 pellets was coated with polydopamine by using a simple immersion method. Silver nanoparticles were then deposited onto the surface of polydopamine modified pellets in order to confer antibacterial properties. The biomineralization ability was tested by soaking the samples in simulated body fluid (SBF). Results showed the successful deposition of both polydopamine and silver nanoparticles on the bioactive glass-ceramic surface. In addition, the formation of a hydroxyapatite layer (HA) on the surface of the samples after soaking them in SBF was confirmed. The kinetics of HA formation was minimally reduced by the presence of polydopamine.
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