Fig. 7.

In vitro angiogenesis and antibacterial activity. A) Cell migration assay of HUVECs. B–C) Tube formation of HUVECs cultured on different samples for 24 h and the related quantitative analysis (**p < 0.01, ****p < 0.001). D) Representative images of colony-forming assays against E. coli (upper row) and S. aureus (following row). Bacteria were incubated with deionized water (CON), SF hydrogel, and SMS hydrogel. E) SEM observation of biofilm formation on the surface of SF and SMS hydrogels after 10 h of incubation.