We report on the structural, magnetic, and bioactive properties of TiO₂‐modified silicate glasses. Addition of TiO₂ and heat treatment, shows remarkable and distinguishable effect on the properties of the glasses. Growth of titania‐modified magnetic nanocrystals played effective role in the evolution of magnetic properties of the glass‐ceramics. Some of the samples exhibit superparamagnetic nature, while others are found to be antiferromagnetic. Interestingly, after heat treatment the magnetization trend of the samples reversed. The in vitro bioactivity of these glass‐ceramics was accessed by the formation of bone‐ like apatite structures on their surfaces after immersion in simulated body fluid. The magnetic properties along with the bioactivity of present glass‐ceramics indicate their usefulness in the magnetically induced hyperthermia treatment of cancer.

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TiO2在玻璃陶瓷中的有趣作用：生物活性和磁结构性质

我们报告了TiO ₂改性硅酸盐玻璃的结构，磁性和生物活性。TiO _2的添加热处理对玻璃的性能显示出显着且独特的效果。二氧化钛修饰的磁性纳米晶体的生长在玻璃陶瓷磁性的演变中起着有效的作用。一些样品具有超顺磁性，而另一些则具有反铁磁性。有趣的是，在热处理之后，样品的磁化趋势发生了逆转。这些玻璃陶瓷的体外生物活性通过浸入模拟体液后在其表面形成骨状磷灰石结构来获得。目前的玻璃陶瓷的磁性和生物活性表明它们在磁致癌热疗中的有用性。