Fig. 8
From: A pH/enzyme dual responsive PMB spatiotemporal release hydrogel promoting chronic wound repair
a GelMA (group 1), GelMA/OSA (group 2), GelMA/OSSA (group 3), GelMA/OSA/PMB (group 4), GelMA/OSSA/PMB (group 5) co-culture with 3T3 and b quantitative data of live cell. c Hemolysis photographs and ratio (%) in response to hydrogel exposure (n = 5). d H&E staining of the heart, liver, spleen, lung, and kidney tissues after 21 days of treatment. Scale bar: 200 μm