Fig. 1From: Peptide hydrogel with self-healing and redox-responsive propertiesNine-residue peptides with non-natural amino acids discussed in this work. A F9 3ʹPyA forms a gel with Ag(I) but not with Cu(II). B F9 4ʹPyA forms a gel in the presence of Cu(II) but no gel with Cu(I) or Ag(I). C Evolution of storage modulus for hydrogels containing 1 wt% peptide (P = F9 4ʹPyA) and 0.5 equiv Cu(II) in buffer with and without ascorbate present (5 equiv with respect to copper)Back to article page