The Rare-Earth Elements Doping of BaGdF5 Nanophosphors for X-ray Photodynamic Therapy

Autor: Daria Kirsanova, Vladimir Polyakov, Vera Butova, Peter Zolotukhin, Anna Belanova, Zaira Gadzhimagomedova, Mikhail Soldatov, Ilia Pankin, Alexander Soldatov
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Nanomaterials, Vol 11, Iss 12, p 3212 (2021)
Druh dokumentu: article
ISSN: 2079-4991
DOI: 10.3390/nano11123212
Popis: It is known that the initiation of photodynamic therapy (PDT) in deep-seated tumors requires the use of X-rays to activate the reactive oxygen species generation in deep tissues. The aim of this paper is to synthesize X-ray nanophosphors and analyze their structural and luminescence characteristics to push the PDT process deep into the body. The article deals with BaGdF5:Eu3+, BaGdF5:Sm3+, and BaGdF5:Tb3+ nanophosphors synthesized using microwave synthesis. It is found that the nanoparticles are biocompatible and have sizes 5–17 nm. However, according to the analysis of X-ray excited optical luminescence, BaGdF5:Sm3+ nanophosphors will not be effective for treating deep-seated tumors. Thus, BaGdF5:Eu3+ and BaGdF5:Tb3+ nanoparticles meet the requirements for the subsequent production of nanocomposites based on them that can be used in X-ray photodynamic therapy.
Databáze: Directory of Open Access Journals