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Synthesis, bioactivity and photocatalytic activity of citrate-stabilized ceria sols

Abstract

Cerium dioxide is a unique material which is promising for biomedical applications. The vast majority of currently existing methods of synthesis results in CeO 2 formation in the form of nanopowders. However such powders are useless as biomedical preparations because their exact dosage is nearly impossible. In this paper, we have offered a facile method of ceria stable sols synthesis and investigated the effect of varying concentrations and molar ratio of initial reagents on the CeO 2 particle size. The toxicity of ceria sols has been analyzed using Vibrio fischeri and Escheriсhia Coli bioluminescent microorganisms. Comparative studies of photocatalytic activity of ceria sols has been also performed

About the Authors

T. O. Shekunova
M. V. Lomonosov Moscow State University
Russian Federation

Department of Materials Science

Moscow

 



D. O. Gil
M. V. Lomonosov Moscow State University
Russian Federation

Department of Materials Science

Moscow

 



O. S. Ivanova
M. V. Lomonosov Moscow State University
Russian Federation

Department of Materials Science

Moscow

 



V. K. Ivanov
M. V. Lomonosov Moscow State University; N. S. Kurnakov Institute of General and Inorganic Chemistry RAS
Russian Federation

Department of Materials Science

Moscow

 



Yu. D. Tretyakov
M. V. Lomonosov Moscow State University
Russian Federation

Department of Materials Science

Moscow

 



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For citations:


Shekunova T.O., Gil D.O., Ivanova O.S., Ivanov V.K., Tretyakov Yu.D. Synthesis, bioactivity and photocatalytic activity of citrate-stabilized ceria sols. Nanosystems: Physics, Chemistry, Mathematics. 2013;4(1):83-89. (In Russ.)

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ISSN 2220-8054 (Print)
ISSN 2305-7971 (Online)