Rheology measurements were performed using an HR-2 Discovery Hybrid Rheometer (TA Instruments) with 25 mm diameter aluminum plates using parallel geometry and connected with a Peltier plate to control the temperature, with a gap distance of 450 μm. The viscoelastic properties and mechanical stiffness of the peptide hydrogels were monitored via oscillatory frequency sweeps. The hydrogels were prepared using 1.9 wt% (19 mg mL -1 ) of P1 and of P2 in the presence of 0.5 equiv. of Zn(OAc) 2 . The samples were formed into silicon molds (Fig. ), yielding similar transparent hydrogel discs with a 5 mm diameter. Three replicates of each hydrogel were prepared to ensure measurement accuracy. Viscoelasticity measurements were performed via frequency-sweep. The frequency sweep covered a spectrum of angular frequencies spanning from 0.1 to 100 rad s -1 , while maintaining a constant strain at 0.1%. Mechanical stiffness was assessed by plotting the elastic modulus, G′, against angular frequency, ω. Shear recovery analysis was carried out with sequential strain steps of 0.05% for 180 s, 100% for 180 s, and 0.05% for 600 s, repeated consecutively three times. These incremental steps facilitated the disruption of the hydrogel, inducing liquefaction, and enabled the monitoring of G′ and G′′ recovery dynamics.