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Fig. 3 | BMC Microbiology

Fig. 3

From: Evaluation of the interaction between polymyxin B and Pseudomonas aeruginosa biofilm and planktonic cells: reactive oxygen species induction and zeta potential

Fig. 3

Determination of the interaction between polymyxin B and Pseudomonas aeruginosa P1C planktonic cells (a), P1C biofilm cells (b), P9C planktonic cells (c), and P9C biofilm cells (d) using the zeta potential (ZP/mV). Significant differences between the treated and untreated cells are represented by one asterisk (P < 0.05). Significant differences between no treatment planktonic and biofilm cells are represented by two asterisks (P < 0.05). Data are presented as the mean ± S.E. of two independent experiments

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