Abstract

Interaction studies using hydrogen NMR spin-lattice relaxation time measurements of a series of five antiparasitic guanyl hydrazones with SDS and cetyl trimethylammonium bromide micelles are used as a simple model for the interaction of these compounds with the cell membrane of Trypanosoma cruzi. The results show that the activity of the compounds is related to their capacity to selectively interact with anionic micelles, which reinforces the hypothesis that the mechanism of action of these compounds is related to their selective interaction with the negatively charged parasite membrane.

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