Synthesis, characterization, and in vitro toxicity evaluation of upconversion luminescence NaLuF4:Yb3+/Tm3+ nanoparticles suitable for medical applications

(2020) Synthesis, characterization, and in vitro toxicity evaluation of upconversion luminescence NaLuF4:Yb3+/Tm3+ nanoparticles suitable for medical applications. Journal of the Chinese Chemical Society. pp. 720-731. ISSN 0009-4536

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Official URL: WOS:000495791800001

Abstract

Synthesis, characterization, and in vitro toxicity evaluation of upconversion luminescence NaLuF4:Yb3+/Tm3+ nanoparticles (UCLNPs) are reported in the current study. Initially, the synthesized lanthanide trifluoroacetate (Ln(OOCCF3)(3)) precursor was used to fabricate NaLuF4 nanoparticles doped with Yb3+ and Tm3+ metal ions. The nanoparticles were coated with calcium carbonate (CaCO3) after removing the hydrophobic species on them to enhance their biocompatibility. The in vitro methylthiazolyldiphenyl-tetrazoliumbromide (MTT) test was used to evaluate the toxicity of synthesized NaLuF4:Yb3+/Tm3+ nanoparticles (NLF-5) on L929 mouse fibroblast cell lines. The transmission electron microscopy image showed that the particle size of NaLuF4:Yb3+/Tm3+ was 32 nm. The synthesized NLF-5 nanoparticles have both alpha-cubic and beta-hexagonal crystalline structures that provided a superb near-infrared-to-near-infrared upconversion luminescence signal when excited at 980 nm. MTT test results show that the death of L929 fibroblast cells was observed only at concentrations above 250 mu g/mL of NaLuF4:Yb3+/Tm3+ nanoparticles. In addition, with an increase in patrol time of 24, 48, and 72 hr, cell toxicity increased significantly, while the coated nanoparticles did not have any toxic effects. The synthesized nanoparticles could be used as a suitable material for medical applications due to their small particle size, high photoluminescence emission intensity, and low toxicity.

Item Type: Article
Keywords: cytotoxicity upconversion L929 mouse fibroblast cell lines NaLuF4 Yb3+/Tm3+ nanoparticles thermal decomposition hydrothermal synthesis photodynamic therapy recent progress surface-charge drug-delivery nanocrystals nanophosphors design green nanomaterials Chemistry
Subjects: QV Pharmacology > QV 600-666 Toxicology
Divisions: Isfahan Clinical Toxicology Research Center
Page Range: pp. 720-731
Journal or Publication Title: Journal of the Chinese Chemical Society
Journal Index: ISI
Volume: 67
Number: 5
Identification Number: https://doi.org/10.1002/jccs.201900281
ISSN: 0009-4536
Depositing User: Zahra Otroj
URI: http://eprints.mui.ac.ir/id/eprint/10916

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