Fig 10. Development of bacterial resistance.
(A) A. baumannii did not develop resistance to QCybuAP but a very high and rapid resistance was observed for known antibiotics with an increase in MIC up to 64 fold after 28 passages. Macromolecules delay the development of resistance to both the known antibiotics with only 8-fold increase in MIC even after 28 passages. (B) E. coli developed rapid resistance to colistin and tetracycline but not to Qn-prAP and Qn-prAP + tetracycline.