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Effect of chain length on the mechanical strength of oligopeptide-based hydrogels. Time-sweep measurements of the EAW6:OAW6 (blue diamonds), EAW10:OAW10 (black diamonds) and EAW14:OAW14 (red diamonds) pairs at 1% wt/wt total peptide concentration. Measurements were conducted at 0.2% strain amplitude and 1 rad/sec angular frequency at 25°C. Closed symbols are storage modulus G′; open symbols are loss modulus G″; data on loss modulus for the EAW6:OAW6 pair are below the detection limit.
