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Photo- and X-ray Induced Cytotoxicity of CeFsub.3-YFsub.3-TbFsub.3 Nanoparticle-Polyvinylpyrrolidone—“Radachlorin” Composites for Combined Photodynamic Therapy
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Photo- and X-ray Induced Cytotoxicity of CeFsub.3-YFsub.3-TbFsub.3 Nanoparticle-Polyvinylpyrrolidone—“Radachlorin” Composites for Combined Photodynamic Therapy
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Photo- and X-ray Induced Cytotoxicity of CeFsub.3-YFsub.3-TbFsub.3 Nanoparticle-Polyvinylpyrrolidone—“Radachlorin” Composites for Combined Photodynamic Therapy
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Journal Article
Photo- and X-ray Induced Cytotoxicity of CeFsub.3-YFsub.3-TbFsub.3 Nanoparticle-Polyvinylpyrrolidone—“Radachlorin” Composites for Combined Photodynamic Therapy
2024
Overview
The Ce[sub.0.5]Y[sub.0.35]Tb[sub.0.15]F[sub.3] nanoparticles with a CeF[sub.3] hexagonal structure were synthesized using the co-precipitation technique. The average nanoparticle diameter was 14 ± 1 nm. The luminescence decay curves of the Ce[sub.0.5]Y[sub.0.35]Tb[sub.0.15]F[sub.3] nanoparticles (λ[sub.em] = 541 nm, [sup.5]D[sub.4]–[sup.7]F[sub.5] transition of Tb[sup.3+]) conjugated with Radachlorin using polyvinylpyrrolidone coating as well as without Radachlorin were detected. Efficient nonradiative energy transfer from Tb[sup.3+] to the Radachlorin was demonstrated. The maximum energy transfer coefficients for the nanoparticles conjugated with Radachlorin via polyvinylpyrrolidone and without the coating were 82% and 55%, respectively. The average distance between the nanoparticle surface and Radachlorin was R[sub.0] = 4.5 nm. The best results for X-ray-induced cytotoxicity were observed for the NP-PVP-Rch sample at the lowest Rch concentration. In particular, after X-ray irradiation, the survival of A549 human lung carcinoma cells decreased by ~12%.
Publisher
MDPI AG
Subject
