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. Author manuscript; available in PMC: 2020 May 21.
Published in final edited form as: Nat Protoc. 2018 Sep;13(9):2102–2119. doi: 10.1038/s41596-018-0036-3

Fig. 5 |. PEG-4MAL hydrogel serves as an injectable delivery vehicle in a colonic mucosal wound model.

Fig. 5 |

a, A wound is observed through the camera. b, The needle is inserted at the distal end of the wound by carefully penetrating the mucosa. c,d, The contents of the custom-made device are injected into the site. e, The needle is removed. The dotted line highlights the wound. The images show a 27-gauge needle (o.d. = 0.41 mm). All experiments with mice were performed while following national and institutional guidelines.