| Autor: |
Dinara R. Khayrutdinova, Margarita A. Goldberg, Alexander S. Fomin, Elizaveta D. Nosova, Polina A. Krokhicheva, Sergey V. Smirnov, Maksim S. Pudovkin, Ekaterina I. Oleynikova, Alexey A. Egorov, Anatoliy A. Konovalov, Alexander I. Ogarkov, Tatiana O. Obolkina, Sergey M. Barinov, Vladimir S. Komlev |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Open Ceramics, Vol 18, Iss , Pp 100587- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2666-5395 |
| DOI: |
10.1016/j.oceram.2024.100587 |
| Popis: |
Calcium sulfate powder materials containing terbium ions at 0, 1.0, or 2.0 mol.% were obtained. They are characterized by the presence of a CaSO4 × 0.5H2O phase, while Tb3+ is incorporated into the lattice at ≤1.0 mol.%. Specific surface area enlarged from 2.1 to 22.5 m2/g as crystallite size decreased from 68 to 31 nm. Thermal analysis showed that terbium slightly raises the temperature of CaSO4 × 2H2O-to-CaSO4 transition. Studies of solubility in SBF solution showed the presence of a calcium phosphate layer in terbium-containing cements on the 7th day. Luminescent properties were studied by excitation at 266 nm and 489 nm corresponding to absorption bands of the host and Tb3+ (7F6 - 5D4 absorption band). The recorded emission peaks of the materials showed that the luminescence of the samples was green, with the luminescence intensity increasing when Tb3+ was introduced. The developed materials can find applications in medicine as bioimplants with a possibility of noninvasive visualization of the bone restoration process. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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