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Comparison between Bioactive Sol-Gel and Melt-Derived Glasses/Glass-Ceramics Based on the Multicomponent SiO2–P2O5–CaO–MgO–Na2O–K2O System

by 1,2,3,*, 1, 1,3,4,* and 1,3,4,*
1
Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, 10129 Turin, Italy
2
Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, Italy
3
Interdepartmental Centre PoliTo BIOMedLab, Politecnico di Torino, 10129 Turin, Italy
4
Interdepartmental Centre [email protected], Politecnico di Torino, 10129 Turin, Italy
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(3), 540; https://doi.org/10.3390/ma13030540
Received: 23 December 2019 / Revised: 18 January 2020 / Accepted: 21 January 2020 / Published: 23 January 2020
(This article belongs to the Special Issue Bioactive Ceramics and Glasses 2019)
Bioactive sol-gel glasses are attractive biomaterials from both technological and functional viewpoints as they require lower processing temperatures compared to their melt-derived counterparts and exhibit a high specific surface area due to inherent nanoporosity. However, most of these materials are based on relatively simple binary or ternary oxide systems since the synthesis of multicomponent glasses via sol-gel still is a challenge. This work reports for the first time the production and characterization of sol-gel materials based on a six-oxide basic system (SiO2–P2O5–CaO–MgO–Na2O–K2O). It was shown that calcination played a role in inducing the formation of crystalline phases, thus generating glass-ceramic materials. The thermal, microstructural and textural properties, as well as the in vitro bioactivity, of these sol-gel materials were assessed and compared to those of the melt-derived counterpart glass with the same nominal composition. In spite of their glass-ceramic nature, these materials retained an excellent apatite-forming ability, which is key in bone repair applications. View Full-Text
Keywords: bioactive glass; glass-ceramic; biomaterials; bioceramics; sol-gel; bioactivity; porosity; bone tissue engineering; textural properties; nanomaterials bioactive glass; glass-ceramic; biomaterials; bioceramics; sol-gel; bioactivity; porosity; bone tissue engineering; textural properties; nanomaterials
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MDPI and ACS Style

Fiume, E.; Migneco, C.; Verné, E.; Baino, F. Comparison between Bioactive Sol-Gel and Melt-Derived Glasses/Glass-Ceramics Based on the Multicomponent SiO2–P2O5–CaO–MgO–Na2O–K2O System. Materials 2020, 13, 540. https://doi.org/10.3390/ma13030540

AMA Style

Fiume E, Migneco C, Verné E, Baino F. Comparison between Bioactive Sol-Gel and Melt-Derived Glasses/Glass-Ceramics Based on the Multicomponent SiO2–P2O5–CaO–MgO–Na2O–K2O System. Materials. 2020; 13(3):540. https://doi.org/10.3390/ma13030540

Chicago/Turabian Style

Fiume, Elisa, Carla Migneco, Enrica Verné, and Francesco Baino. 2020. "Comparison between Bioactive Sol-Gel and Melt-Derived Glasses/Glass-Ceramics Based on the Multicomponent SiO2–P2O5–CaO–MgO–Na2O–K2O System" Materials 13, no. 3: 540. https://doi.org/10.3390/ma13030540

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