Библиографическое описание:Synthesis of CuFe2O4/Au and CuO/Au Hybrid Gold-Containing Nanoparticles via Anion Exchange Resin-Assisted Precipitation : научное издание / A. Yu. Pavlikov [et al.]. - Текст : непосредственный // Inorganic Materials. - 2024. - Т. 60, № 11. - P. 1344-1355. - The measurements of the zeta potential and X-ray photoelectron spectra of the particles and the optimization of the technique for the preparation of the photocatalytically active semiconductor–gold nanocomposites were supported by the Russian Science Foundation, project no. 22-13-00321.The synthesis of the copper ferrite and copper oxide nanoparticles and the transmission electron microscopy and X-ray diffraction characterization of the nanoparticles were supported by the Russian Federation Ministry of Science and Higher Education, state research target, project no. FWES-2021-0014. - ISSN 0020-1685. - ISSN 1608-3172, DOI 10.1134/S0020168525700086.
Аннотация:Hybrid nanoparticles based on nonferrous metal oxides and gold are of interest for application in catalysis and biomedicine, in particular, for magnetic hyperthermia and targeted drug delivery. In this paper, we describe methods for the preparation of oxide (CuO and CuFe<sub>2</sub>O<sub>4</sub>) cores and hybrid (CuO/Au and CuFe<sub>2</sub>O<sub>4</sub>/Au) nanoparticles having gold nanoclusters ~2 nm in size on their surface. The hybrid nanoparticles were synthesized using L-methionine, an amino acid that acts as a reducing agent and an “anchor” between the oxide core and gold clusters. The proposed method for the preparation of CuO and CuFe<sub>2</sub>O<sub>4</sub> oxide cores—anion exchange resin-assisted precipitation—is simple, fast, and easy to reproduce under ordinary laboratory conditions. It has been shown that anion exchange resin-assisted Cu<sup>2+</sup> precipitation with no polysaccharide leads to the formation of elongated copper(II) oxide nanoparticles 85 ± 3 nm in length and 15.1 ± 0.3 nm in thickness, whereas anion exchange resin-assisted precipitation of Cu<sup>2+</sup> and Fe<sup>3+</sup> in the presence of a polysaccharide (dextran-40) and subsequent heat treatment (850°C) of a stoichiometric precursor yields copper ferrite nanoparticles 18.3 ± 0.4 nm in size. Evaluation of the biocompatibility of all the synthesized materials (CuO, CuFe<sub>2</sub>O<sub>4</sub>, CuO/Au, and CuFe<sub>2</sub>O<sub>4</sub>/Au) with the use of <i>Escherichia coli</i> and <i>Bacillus subtilis</i> as test microorganisms has shown that the presence of gold improves their biocompatibility and makes them suitable for biomedical applications.
Держатель оригинала документа:Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences (separate subdivision of the Krasnoyarsk Scientific Center (Federal Research Center), Siberian Branch, Russian Academy of Sciences), Siberian Federal University
Количество экземпляров:
Твёрдая копия издания отсутствует в фонде библиотеки
