Communications

Consumption kinetics of N-monosubstituted amino acid fullerene C₆₀ derivatives in reactions with peroxy radicals in aqueous colloidal solutions

M. V. Voronkov^a, V. A. Volkov^a, A. A. Maltsev^a, V. M. Misin^a, V. S. Romanova^b, E. A. Shneydmiller^a, I. S. Pytskii^c, A. K. Buryak<sup>c

a</sup> N. M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russian Federation
^b A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119334 Moscow, Russian Federation
^c A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russian Federation

Аннотация: The kinetics of N-(monohydrofullerenyl)-L-alanine and N-(monohydrofullerenyl)-D-alanine consumption during interaction with alkylperoxy radicals in aqueous colloidal solutions were recorded. The covalent attachment of radicals to the fullerene ‘core’ was confirmed by IR spectroscopy. It was found that the antiradical activity of fullerene derivatives initially quickly declines but does not further tend to zero, remaining at a significant level for a long time, which is probably due to another inhibition mechanism realized through free radical adsorption on nanoparticles followed by recombination.

Ключевые слова: free radical scavengers, fullerene, C₆₀, antiradical activity, antioxidant, nanoparticles, AAPH.

Поступила в редакцию: 11.03.2025
Принята в печать: 19.05.2025

Язык публикации: английский

DOI: 10.71267/mencom.7762

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