Figure 7.

Photographs taken after using dry gauze to absorb viscous liquid in the abdominal cavity in hydrogel-treated rats in the days following treatment. The poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCEC) hydrogel transformed into a solid-like membrane adhering to the injured surfaces of the abdominal wall and wrapping around the injured cecum. The injured surfaces of the cecum could still be observed after partially stripping the hydrogel membrane. With the passage of time, the hydrogel covering on the injured surfaces of the abdominal wall and cecum gradually disappeared and transformed into a viscous liquid, which was completely absorbed by 14 days, with gradual healing of the peritoneal wounds.