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Gold-Containing Nanocomposites: A Comprehensive Study of Physical Properties and Biological Activityстатья
Дата последнего поиска статьи во внешних источниках: 15 октября 2025 г.
- Авторы: Kirillov V.E., Fionov A.S., Koksharov Yu A., Kozinkin A.V., Vlasenko V.G., Taratanov N.A., Yurkov V.G., Kolesov V.V., Voronov A.S., Solodilov V.I., Yurkov G.Yu
- Журнал: Russian Journal of Physical Chemistry B
- Том: 19
- Номер: 5
- Год издания: 2025
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1138
- Последняя страница: 1149
- DOI: 10.1134/s1990793125700836
- Аннотация: For our research we obtained a composite nanomaterial consisting of Au-containing nanoparticlesstabilized in a low-density polyethylene matrix by thermal decomposition of chloroauric acid. An investiga-tion was performed on the characteristics of the resulting composites employing methods of transmissionelectron microscopy, X-ray diffraction, and EXAFS. The Au-containing nanoparticles were seen to have anaverage size of 50 nm, and the particle core has a crystalline structure close to that of bulk Au. An electronparamagnetic resonance (EPR) study showed that at low microwave power the EPR line had a virtuallyLorentzian shape. At maximum power, though, the line shape differed significantly from the Lorentzian dueto wide “wings” presence. The electrophysical properties of the resulting nanocomposites and their depen-dence on the filler concentration were also investigated. The study definitively established that the synthe-sized composites with gold-containing nanoparticles were characterized by diamagnetic susceptibility valuesthat are lower than those of unfilled polyethylene, as well as non-zero magnetization values presenting inweak magnetic fields. The composite materials were also studied in terms of their biocidal properties.
- Добавил в систему: Кокшаров Юрий Алексеевич
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