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A set of fifteen calcium-phosphate-silicate glass samples, varying in alkali, magnesium, silicon, and nitrogen content, was prepared, and their structural, thermal, and in vitro dissolution properties were analyzed. Infrared spectroscopy showed a high degree of depolymerization of the silicate network consisting mainly of Q2 and Q3 units. Thermal analysis showed that the silicon content primarily affects both the glass transition temperature and the thermal stability of the glasses. In vitro dissolution studies were conducted both in static and dynamic modes in phosphate-buffered saline. Greater weight loss can be observed for materials tested in the dynamic mode than in the static mode. Ion concentration profiles determined for PBS after immersing the glasses showed the release of sodium and calcium into solutions. Subsequent studies, conducted using scanning electron microscopy, X-ray diffraction, and infrared spectroscopy showed the formation of an amorphous or crystalline layer of calcium phosphates, most likely hydroxyapatite.

権利情報:

• Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
  

キーワード: bioglass

刊行年月日: 2024-10-11

出版者: Elsevier BV

掲載誌:

• Journal of Non-Crystalline Solids (ISSN: 00223093) vol. 646 123254

研究助成金:

• Lingnan Normal University 87202002
• National Science Centre Poland 2023/07/X/ST3/00443
• Crafoord Foundation 20220692

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5077

公開URL: https://doi.org/10.1016/j.jnoncrysol.2024.123254

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更新時刻: 2024-12-02 17:25:02 +0900

MDRでの公開時刻: 2026-10-11 08:20:50 +0900