Anion Selective Ion Channel Constructed from a Self-Assembly of Bis(cholate)-Substituted Fumaramide

Abstract

The self-assembled ion channel constructed from bis(cholate)-substituted fumaramide is reported. Such ion channel formation was favored by intermolecular hydrogen bonding interactions among fumaramide moieties. Fluorescence kinetics experiments and planar bilayer conductance measurements confirmed the selective chloride transport through the channel. Theoretical calculations were done to confirm the hydrogen bonded self-assembly of fumaramides and chloride recognition within the cavity.