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CATALYTIC ACTIVITY OF CERIUM OXIDE NANOPARTICLES

1 BAZHUKOVA Irina
Co-authors:
1 ZVONAREVA Inna 1 MYSHKINA Alexandra 1 BAZHUKOV Sergei 2 GAVRILOV Ilya 2 MESCHANINOV Viktor
Institutions:
1 Ural Federal University, Institute of Physics and Technology, Yekaterinburg, Russia, i.n.sedunova@urfu.ru
2 Urals State Medical University, Yekaterinburg, Russia
Conference:
11th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 16th - 18th 2019
Proceedings:
Proceedings 11th International Conference on Nanomaterials - Research & Application
Pages:
348-352
ISBN:
978-80-87294-95-6
ISSN:
2694-930X
DOI:
https://doi.org/10.37904/nanocon.2019.8696
Published:
1st April 2020
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
1138 views / 717 downloads
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Abstract

Cerium oxide (CeO2) nanoparticles present an interesting material for various applications in biotechnology and medicine. The mechanism of CeO2 nanoparticles biological activity is supposed to be related to the presence both Ce3+ and Ce4+ ions on the surface of the nanocrystal. We studied and compared the catalytic activity of CeO2 nanoparticles synthesized by chemical and physical methods. The cerium oxide was found to demonstrate catalase-like and peroxidase activity. CeO2 nanoparticles obtained by a chemical method showed more pronounced catalytic properties. In addition, this material catalyzed the decomposition of hydrogen peroxide by the enzyme horseradish peroxidase.

Keywords: Nanoparticles, luminescence, defects, cerium dioxide, catalytic activity, enzymes, catalase

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