Extended Data Fig. 7: Hydrogel network rheology.
From: Polymers with controlled assembly and rigidity made with click-functional peptide bundles
Hydrogels were composed of peptides 1 or 5 (Extended Data Fig. 1) linked with four-arm PEG tetrathiol (Extended Data Fig. 6). We monitored the storage modulus G′ (filled symbols) and loss modulus G″ (open symbols) as functions of temperature (left) and as a result of the cycling of temperature (right); in the latter case, temperature ramps were performed over 5 min between isothermal measurements of 2-min duration. a, Peptide 1, with Tm = 55 °C. Peptide 1 produces a temperature-reversible hydrogel owing to the low melting temperature of the designed peptide. b, Peptide 5, with Tm = 85 °C. The hydrogel produced with peptide 5 is stable to approximately 85 °C and shows much more rigid gel properties at all temperatures tested.
