Supramolecular hydrogels based on the epitope of potassium ion channels

Imparting aromatic-aromatic interactions to the potassium binding epitope affords a supramolecular hydrogelator that responds to the K(+) concentration by self-assembly into nanofibers of different widths and crosslinking patterns, which illustrates a simple approach to generate biomimic materials based on tunable, hierarchical self-assembly of small molecules.