Fig. 3
The antimicrobial effect of BGZ@GelMA hydrogels in vitro. (A) Colonies of different groups of S. aureus and E. coli on agar plates. (B) Antimicrobial ratio of hydrogels against S. aureus. (C) Antimicrobial ratio of hydrogels against E. coli. (D) Representative SEM images of S. aureus and E. coli in different groups (scale bar: 1 μm). (E) Representative images of live/dead fluorescence staining of the S. aureus and E. coli (scale bar: 100 μm)