Electrochemical Concern for Biological Activity Displayed by Core–Shell Type Nanocomposites of FeFe2O4 & Ag0 Family | ||||
| Journal of Pharmaceutical and Applied Chemistry | ||||
| Volume 3, Issue 2, September 2017, Page 64-70 PDF (1.22 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.18576/jpac/030305 | ||||
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| Authors | ||||
| Gennadii A. Dolynskyi1; Olena M. Lavrynenko1; Оksana S. Krupennikova2; Yuriy K. Pirskyy2 | ||||
| 1Nanocomposites for Biomedicine Research Group, I. M. Frantsevich Institute for Problems of Material Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovsky Street, 03680, Kyiv, Ukraine | ||||
| 2Materials for Electrochemical Energetics Laboratory, V.I. Vernadskii Institute of General and Inorganic Chemistry, National Academy of Sciences of Ukraine, 32 – 34 Palladina Avenue, 03680, Kyiv, Ukraine | ||||
| Abstract | ||||
| The kinetic characteristics of oxygen reduction on the surface of core–shell type nanocomposites FeFe2O4 & Ag0 are considered in the context of the certain catalytic cycle, which may occur due to electrochemical interaction between core and shell moiety. Being synthesized under different initial concentrations of Ag+ in the incubation medium, metal silver nanoclusters on the surface of magnetite core can form a layer varying from islet-like structures to aggregated spherical porous shell, thereby altering the electrocatalytic activity of the nanocomposite. Consequently, the ability for reactive oxygen species generation can be predetermined to specify potential biological activity of the nanocomposite through its interference with free radical metabolism. | ||||
| Keywords | ||||
|  Core–shell type nanocomposites; Argentum ions; Ferrous ferric oxide; Oxygen electroreduction | ||||
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