Nature of long-lived nonequilibrium states of water and glycyltryptophan aqueous solutions

Abstract

It was shown that long-term quasi-periodic and transient processes of variations in fluorescence parameters of water and diluted aqueous solutions can be explained by reversible chain reactions of peroxidation of organic impurities localized on the vapor-gas bubble surface. These processes are initiated by reactive oxygen species and are accompanied by changes in gas contents, conductivity, and pH of an aqueous medium. By the example of Tween-85 additives to diluted solutions of glycyltryptophan, it was shown that the effect of organic impurities is most pronounced at their low concentrations.