Effects of Eu3+, Gd3+ and Yb3+ substitution on the structural, photoluminescence, and decay properties of silicate-based bioactive glass powders
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Date
2022
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Abstract
Bioactive glass (BG) powders containing europium (Eu3+), gadolinium (Gd3+) and ytterbium (Yb3+) were synthesized through sol–gel process. Effects of the related rare-earth ions on the structural, photoluminescence (PL), and decay characteristics were investigated. In vitro, acellular bioactivity of the synthesized powders was examined in simulated body fluid (SBF). Results revealed that all of the BG powders tested in the study showed PL emission under excitation at 374 nm. Among the rare earth dopants tested in the study, Eu3+-containing samples exhibited the strongest emission intensities and for all the glasses optimum dopant concentration was 3 wt% based on the luminescence properties. The synthesized BG have ability to convert to hydroxyapatite (HA) after immersion in SBF. However, more detailed studies with resolution techniques are needed to confirm these observations, that the BG containing Eu3+, Gd3+, and Yb3+ have the ability to form HA and can be used in biomedical applications. Graphical abstract: [Figure not available: see fulltext.] © 2021, The Author(s), under exclusive licence to The Materials Research Society.
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Body fluids , Hydroxyapatite , Medical applications , Metal ions , Photoluminescence , Powders , Rare earths , Semiconductor doping , Silicates , Sols , Decay properties , Gadolinia , Glass Powder , Photoluminescence characteristics , Photoluminescence properties , Rare earth ions , Simulated body fluids , Sol'gel , Structural characteristics , Synthesised , Bioactive glass