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. 2020 May 22;32(12):5264–5271. doi: 10.1021/acs.chemmater.0c01483

Figure 1.

Figure 1

(Top) The functionalized dipeptide gelator (1) used here which forms a gel at low pH and a viscous solution at high pH in 20/80 DMSO/water (v/v). (Bottom) Cartoon representing annealing of peptide hydrogel of 1 using a consecutive reaction relay. The enzymatic reaction is responsible for increasing the pH (green line), while the hydrolysis of methyl formate lowers the pH. The solidlike properties are represented by the storage modulus (G′). The reaction proceeds in 20/80 DMSO/water (v/v).