Fig. 4

Various types of hydrogels have been, and are continuing to be used as wound healing therapeutics including hydrogels formed from the biopolymer a Hyaluronan hydrogel. Figure adapted with permission from the original article of Liyang et al. [25]. (Copyright 2017 by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim). b Injectable hydrogels show promise for wound healing applications. Figure adapted with permission from the original article of Liao et al. [20] (Copyright 2018 by American Chemical Society)