Skip to main content
. 2022 Dec 21;123(2):736–810. doi: 10.1021/acs.chemrev.2c00418

Figure 38.

Figure 38

(A) Various shapes and letters obtained by bringing the freshly fractured surfaces into contact. (B) Self-healing and stretching behaviors of poly(MAH-β-CD-co-AA) hydrogels. (C) Deprotonated and protonated cylindrical hydrogels in (i) urea solution (pH > 9) and (ii) acidic solution (pH < 3). (D) Schematic representation and digital photos of the actuation motion observed for poly(MAH-β-CD-co-AA/DN bilayer hydrogel actuator in hot water (40 and 80 °C). Adapted with permission from ref (301). Copyright 2019 Elsevier.