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. Author manuscript; available in PMC: 2022 Sep 22.
Published in final edited form as: Chem Rev. 2020 Dec 23;121(18):10908–10949. doi: 10.1021/acs.chemrev.0c00923

Figure 14. Crosslinking via hydrogen bonding.

Figure 14.

a) Schematic representation of biopolymers modified with ureidopyrimidone (UPy) and crosslinking due to hydrogen bonding. b) Schematic representation of biopolymers modified with gallol groups and crosslinking due to hydrogen bonding. c) Dextran is modified with UPy (Dex-UPy) to undergo hydrogel formation due to hydrogen bonding. The resulting hydrogel is shear-thinning and self-healing. Images show self-healing behavior of Dex-UPy hydrogels. Adapted with permission form Hou, et al.340 Copyright, 2015 Wiley.