Fig. 5.

Schematization of the preparation of the hydrogel where A) the precursor solution of CS, GP, and HA, their solution at a low temperature of 4 ​°C, and the formed hydrogel at 37 ​°C are shown. (B–D) Photographs showing how the precursor solution was ejected to form droplets using a syringe. E) Representative photograph showing how the hydrogel conjugated with DOX precursor solution was ejected to form droplets using a syringe, (F) Image showing the hydrogel conjugated with DOX precursor solution at a temperature of 4 ​°C which at 37 ​°C ​(G) formed the hydrogel. Reprinted and modified with permission from Ref. [175].