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The capability of biofilm eradication of GelMA-EGF/Gelatin-MPDA-LZM hydrogel in vitro. (A) Photographs of crystal violet stained E. coli biofilms in different groups and (B) corresponding absorbance at 590 nm (n = 3, ∗∗∗P < 0.001). (C) 3D confocal laser scanning microscopy images of SYTO 9 stained E. coli biofilms after different treatments (scale bar: 50 μm). The live bacteria were in green fluorescence.
