SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF STRONTIUM CONTAINING BIOACTIVE GLASSES

• 出版年: Studia Universitatis Babes-Bolyai Chemia
• 主要な著者: Maria STEINER, Rozalia VERES, Viorica SIMON
• フォーマット: 論文
• 言語: 英語
• 出版事項: Babes-Bolyai University 2015-06-01
• 主題: bioactive glasses; sol-gel; strontium; in vitro bioactivity
• オンライン･アクセス: https://studia.reviste.ubbcluj.ro/index.php/chemia/article/view/8453
• ISSN: 1224-7154; 2065-9520

Bioactive glasses of SiO2-CaO-SrO-P2O5 system, wherein SrO progressively replaced up to 4 mol% CaO, were produced using the sol-gel route. Their structural properties and bioactivity were tested using differential thermal analysis (DTA), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). Based on the DTA results, the 110ºC dried gels were subjected to heat treatment at 600ºC. X-ray diffractograms show a predominant amorphous character for all samples. FT-IR results indicate few changes in the local structure by progressive addition of strontium. The soaking of samples for 14 days in biological fluid resulted in the formation of hydroxyapatite layer that delivered characteristic infrared absorption band sensitive to strontium content.