ION RELEASE BEHAVIOR OF SILICOPHOSPHATE GLASSES CONTAINING SIX-FOLD COORDINATED SILICON STRUCTURE

• Miura Atsuhiro

  Division of Advanced Ceramics, Nagoya Institute of Technology

• Obata Akiko

  Division of Advanced Ceramics, Nagoya Institute of Technology

• Kasuga Toshihiro

  Division of Advanced Ceramics, Nagoya Institute of Technology

Abstract

To facilitate the efficient use of phosphate-based glasses in various biomedical applications, it is essential to understand the effects of ion-releasing in the living body. In this work, the ion-releasing behavior of silicophosphate glass, designed as a supply source of silicate and phosphate ions that are effective for bone formation, was investigated. Two types of P₂O₅-SiO₂-CaO-Na₂O glasses containing 45–50 mol% of P₂O₅ with both four- and six-fold coordinated silicon structures were prepared. The glass with ~50 mol% of P₂O₅ content had a higher proportion of six-fold coordinated silicon structure, and it showed a lower ionic release to a simulated body fluid than that with ~45 mol% P₂O₅ content. The release of the therapeutic ions from the silicophosphate glass can be effectively controlled by choosing their composition.

Journal

• Phosphorus Research Bulletin

  Phosphorus Research Bulletin 38 (0), 1-4, 2022

  Japanese Association of Inorganic Phosphorus Chemistry

Keywords

• Silicophosphate glass
• Six-fold coordinated silicon structure
• Ion release

Details

• CRID: 1390290769955277056
• NII Article ID: 130008140979
• DOI: 10.3363/prb.38.1
• ISSN: 18822363
• ISSN: 09184783
• Web Site: https://www.jstage.jst.go.jp/article/prb/38/0/38_1/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed