Potassium-ion-responsive chiral supramolecular hydrogels exhibiting long-range chirality transfer from D- or L-alanine to achiral frameworks

Abstract

Applying vibrational circular dichroism (VCD) spectroscopy, we directly reveal hydrated-state supramolecular chirality in K⁺-responsive chiral supramolecular hydrogels. Combined VCD and induced circular dichroism measurements confirmed that K⁺-triggered self-assembly enables long-range chirality transfer from a chiral D- or L-alanine residue to an otherwise achiral supramolecular framework.