Ion-specific binding of cations to the carboxylate and of anions to the amide of alanylalanine

Abstract

Studies of ion-specific effects on oligopeptides are largely dependent on model peptides and experimental sensitivities. Here, the authors study the ion-specific effects on L-alanyl-L-alanine by combining dielectric relaxation, 1H-NMR and 2D infrared spectroscopy.