Antimicrobial activity of arylamide foldamers. (A) Structures and MICs of PMX 10070 and PMX 10072 against E. coli D31; (B) bactericidal activity of PMX 10070, PMX 10072, and PmB at MIC against E. coli D31; (C to E) E. coli D31 growth in 1× (red), 2× (blue), and 4× (green) MIC treatment with PMX 10070 (C), PMX 10072 (D), and polymyxin B (E).