Abstract
Objective: GdF3:Tb nanosized phosphors were synthesized by the sol–gel and hydrothermal methods. Directed crystallite growth toward the (020) and (210) crystallographic planes was revealed. Methods: The chemical trap method was used to explore the efficiency of reactive oxygen production of the GdF3:Tb–Rose Bengal photosensitizer system. Results and Discussion: It was shown that the phosphors synthesized by the hydrothermal method have a smaller particle size and a higher luminescence intensity compared to those synthesized by the sol–gel method. Due to their luminescent characteristics and particle size, the GdF3:Tb nanosized phosphors synthesized by the hydrothermal method are suitable for use, in combination with the Rose Bengal photosensitizer, in drug formulations for X-ray photodynamic therapy of oncological diseases. Conclusions: The addition of the GdF3:Tb nanosized phosphors, synthesized by the hydrothermal method, significantly (by 17%) increases the production of reactive oxygen.
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The data that support the findings of this study are available from the corresponding author upon reasonable request.
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The authors acknowledge St. Petersburg State University for a research project 95445540.
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The author R.A.A. designed the experiments; the authors P.S.U. and P.D.Z. synthesized the samples and carried out their electrochemical study; V.V.B. and P.S.U. performed writing and original draft preparation; V.V.B. and E.I.L. performed review and editing; P.D.Z done the visualization; E.I.L was responsible for project administration. All authors participated in data processing and contributed to manuscript preparation, and participated in the discussions.
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Ustabaev, P.S., Zykova, P.D., Bakhmetev, V.V. et al. Research and Optimization of the Synthesis of GdF3:Tb X-Ray Phosphors for X-Ray Photodynamic Therapy. Russ J Bioorg Chem 50, 522–529 (2024). https://doi.org/10.1134/S1068162024020894
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DOI: https://doi.org/10.1134/S1068162024020894