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Synthesis and study of the cerium doped hydroxyapatite powdersстатья
- Авторы: Nikitina Y.O., Petrakova N.V., Maksimenko E.I., Chizhevskaya S.V., Andreev S.M., Sadovnikova M.A., Murzakhanov F.F., Mamin G.V., Gafurov M.R., Komlev V.S.
- Журнал: Magnetic Resonance in Solids
- Том: 26
- Номер: 1
- Год издания: 2024
- Номер статьи: 24103
- DOI: 10.26907/mrsej-24103
- Аннотация: Hydroxyapatite (HAp) is an attractive material for creating biocompatible implants owing toits osteoregenerative properties, elemental and phase similarity to bone tissue. The flexiblestructure of the material allows the introduction of ionic impurities to improve physicochemicaland biological characteristics while maintaining the space symmetry group. Rare earth ions area new step in improving compounds to create luminescent bioimaging agent for application indiagnostics imaging medicine. Nanosized powder of HAp doped with cerium ions (Ce-HAp) wasobtained in order to study the impurity localization and its oxidizing state with conventional and pulsed electron paramagnetic resonance (EPR) at X-band. Undoped and doped HAp powders were synthesized via precipitation technique. It was revealed, that Ce-HAp powders after synthesis and heating exhibit luminescence in visible wavelength range (380 and 420 nm) thatconfirms the presence of Ce3+ in HAp structure. Heating of Ce-HAp in the air atmosphere results in formation of CeO2 with low intensity of uminescence. EPR spectra of the doped sample confirms the Ce3+ incorporation into HAp structure. The powder-like EPR lineshapefor the obtained powders can be simulated with g∥ = 3.47 and g⊥ = 0.51.
- Добавил в систему: Чижевская Светлана Владимировна