Abstract
Reactions of active oxygen species with a series of amino acids on the surface of the hydrophilic side of biomembrane models was investigated. As these models the following polymers adsorbed on a copper cathode were used: polyacrylamide (PAA), albumin, and polyaniline (PANI). The characteristics of the polymers’ adsorption were studied. It is shown that PANI and PAA, in contrast to albumin, facilitate the reduction of molecular oxygen, accelerating the formation of its reactive species. It is established that the reaction of oxygen reactive species with amino acids is catalyzed by PANI and is decelerated by PAA, whereas albumin has practically no influence on this process. Assumptions are reported on the mechanism of the polymers nature influence on the oxygen reduction and the reaction of its active species with amino acids of various structure.
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