Synthesis and characterization of luminescent cerium-doped hydroxyapatite

Petrakova, Nataliya V.; Zobkova, Yulia O.; Komlev, Vladimir S.; Ashmarin, Artem A.; Lysenkov, Anton S.; Volchenkova, Valentina A.; Barinov, Sergey M.; Sadovnikova, Margarita A.; Murzakhanov, Fadis F.; Gafurov, Marat R.; Kudryavtsev, Egor A.; Kozyukhin, Sergey A.; Trigub, Alexander L.; Rogachev, Alexander V.

doi:10.1016/j.ceramint.2024.03.093

Ceramics International

2024

DOI: 10.1016/j.ceramint.2024.03.093

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Synthesis and characterization of luminescent cerium-doped hydroxyapatite

Nataliya V. Petrakova,

Yulia O. Zobkova,

Vladimir S. Komlev

et al.

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Cited by 4 publications

References 77 publications

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Formation of Oxygen Vacancies in Cr3+-Doped Hydroxyapatite Nanofibers and Their Role in Generating Paramagnetism

Carrera,

Huerta,

Orozco

et al. 2024

Biomedical Materials & Devices

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We demonstrate that doping hydroxyapatite (HAp) with Cr3+ ions induces oxygen vacancies, contributing to paramagnetism. Cathodoluminescence and photoluminescence analyses reveal increased oxygen vacancy formation in $${\text{O}}{\text{H}}^{-}$$ OH - and $${\text{P}}{\text{O}}_{4}^{3-}$$ PO 4 3 - groups with rising Cr3+ concentrations, highlighted by stronger cathodoluminescence emissions at 2.57 and 2.95 eV and the photoluminescence emission at 3.32 eV. Raman spectroscopy shows new modes at 900 and 970 cm−1, indicating distortion of the v1 vibrational mode due to Cr3+ substitution at Ca(II) sites of the HAp lattice. X-ray photoelectron spectroscopy confirms Cr3+ in the HAp:Cr. Magnetometry reveals a shift from diamagnetism in pure HAp to increasing paramagnetism in HAp:Cr with higher Cr3+ content, achieving 0.0460 emu/g at 10 kOe with concentrations higher than 2.9 at.%. This paramagnetism is attributed to Cr3+ ions and singly ionized oxygen vacancies $$V^{\prime}_{{\text{O}}}$$ V O ′ aligning along an external magnetic field, with $$V^{\prime}_{{\text{O}}}$$ V O ′ formation linked to $${\text{PO}}_{4}^{{3}-}$$ PO 4 3 - replacement by $${\text{PO}}_{3}^{{2}-}$$ PO 3 2 - in HAp.

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Formation of Oxygen Vacancies in Cr3+-Doped Hydroxyapatite Nanofibers and Their Role in Generating Paramagnetism

Carrera,

Huerta,

Orozco

et al. 2024

Biomedical Materials & Devices

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show abstract

Chitosan-collagen-cerium hydroxyapatite nanocomposites for In-vitro gentamicin drug delivery and antibacterial properties

Quilumbango,

Briceño,

Ponce

et al. 2024

Carbon Trends

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Luminescent calcium orthophosphate (CaPO4) bioceramics: preparation, properties and biomedical applications

Dorozhkin,

Kharissova,

Kharisov

2024

Ceramics International

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Synthesis and characterization of luminescent cerium-doped hydroxyapatite

Cited by 4 publications

References 77 publications

Formation of Oxygen Vacancies in Cr3+-Doped Hydroxyapatite Nanofibers and Their Role in Generating Paramagnetism

Formation of Oxygen Vacancies in Cr3+-Doped Hydroxyapatite Nanofibers and Their Role in Generating Paramagnetism

Chitosan-collagen-cerium hydroxyapatite nanocomposites for In-vitro gentamicin drug delivery and antibacterial properties

Luminescent calcium orthophosphate (CaPO4) bioceramics: preparation, properties and biomedical applications

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