Co-assembled supramolecular hydrogels:
nano-IR sheds light on tripeptide assemblies
Supramolecular hydrogels composed of self-assembling short peptides are gaining momentum for enzyme mimicry. In particular, multicomponent systems that feature similar peptides with a self-assembling motif (e.g., Phe–Phe) and catalytic residues (e.g., His, Asp) offer a convenient approach to organize in space, functional residues that typically occur at enzymatic active sites. In this work, we study two-component hydrogels composed of similar tripeptides and describe how nano-IR can reveal important details of their packing.