Fig. 1From: Alteration of Zeta potential and membrane permeability in bacteria: a study with cationic agentsChange in bacterial (a, c E. coli: b, d S. aureus) Zeta potential and membrane permeability (assayed by NPN uptake) in presence of different concentrations of CTAB (a, b) and polymyxin B (c, d). Percentage change in Zeta potential (solid lines) and percentage change in permeability (dashed lines) was plotted against the concentration (µg/ml) of the treatmentBack to article page