Fig. 2. Effect of LPS in the D-11/vancomycin synergism and outer-membrane permeabilization assay.
a Checkerboard broth microdilution assay diagram showing the effect of LPS and Mg2+ in the D-11/vancomycin synergistic relation. Dark region represents higher cell density. b Dose-dependent outer-membrane permeabilization by D-11 against different Gram-negative bacteria. Polymyxin B was used as a positive control and vancomycin as negative.
