Fig. 2. In vitro degradation properties of CS/PEG hydrogel and CS/PEG/PHMB hydrogel. (a) Photographs of CS/PEG hydrogels in accelerated degradation experiments. (b) CS/PEG hydrogel mass change curves after incubation at 70 °C for 2 days. (c) In vitro degradation ratio of CS/PEG hydrogels after incubation at 37 °C for 28 days. (d) In vitro degradation ratio of CS/PEG/PHMB hydrogels after incubation at 37 °C for 28 days. (e) The cumulative loss rate of PHMB in degradation experiments. The data shown was ±SD and these experiments were repeated 3 times.
