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. 2017 Aug 24;12(8):e0183263. doi: 10.1371/journal.pone.0183263

Fig 3. Antibacterial activity of antibiotics and cationic polymer (Qn-prAP) against E. coli antibiotic-tolerant cells.

Fig 3

(A) Ampicillin (100 μg mL-1), kanamycin (100 μg mL-1) do not kill whereas Qn-prAP shows concentration dependent (10, 30 and 50 μg mL-1) elimination of E. coli antibiotic-tolerant cells. ~106 CFU mL-1 of bacteria in M9 media were treated with compounds for 2 h. Stars represent no survival detected (limit of detection < 50 CFU/mL).