fig11
![Towards extracellular vesicle delivery systems for tissue regeneration: material design at the molecular level](https://image.oaes.cc/c4f27606-2eae-41f8-be4d-7070392c1fc4/5235.fig.11.jpg)
Figure 11. Schematic illustration of the promoted wound-healing effect of controlled release of EVs from photocleavable hydrogel and the according staining of wounds treated with different approaches at Day five. Adaptations with permission[136], Copyright 2019, American Chemical Society. EVs: Extracellular vesicles.