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Nanocrystallization as a tool for controlling in vitro dissolution of borophosphate glass

Abstract

The controlled nanocrystallization of sodium-calcium-borophosphate glass (Na16.6Ca5.1B10.5Al0.8P10.5 O56.5 in at %) was conducted to investigate its influence on in vitro dissolution. Three temperatures (570 ◦C, 590 ◦C, and 610 ◦C) were selected based on thermal analysis and investigation of the morphology, structure, and in vitro dissolution of glass and glass-ceramics was conducted. The results of X-ray diffraction confirmed the presence of calcium phosphates nanocrystallites in glass-ceramics, with their contents increasing proportionally to the crystallization temperature. Infrared spectroscopy showed the presence of phosphate and borate network units, along with phosphates in a crystalline form. It was found that the target glass shows the highest mass loss in comparison to the glass-ceramics. Controlled nanocrystallization slowed down the dissolution of the materials (>10%), but did not adversely affect the deposition of hydroxyapatite layer. The presence of calcium phosphate nanocrystallites favors the process of B3+ release. The nanocrystallization of borophosphate glasses is a perspective tool for controlling the rate of dissolution of bioactive materials and enhancing their ability to deposit hydroxyapatite on their surface.

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Category:
Articles
Type:
artykuły w czasopismach
Published in:
CERAMICS INTERNATIONAL no. 49, pages 27382 - 27390,
ISSN: 0272-8842
Language:
English
Publication year:
2023
Bibliographic description:
Dziewanowska J., Karczewski J., Ali S., Wójcik N.: Nanocrystallization as a tool for controlling in vitro dissolution of borophosphate glass// CERAMICS INTERNATIONAL -Vol. 49,iss. 16 (2023), s.27382-27390
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.ceramint.2023.06.006
Sources of funding:
  • IDUB
Verified by:
Gdańsk University of Technology

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