Fig.3.

Antibacterial activities evaluation. a The culture medium images of raw PET, PET-2, PET-3 and PET-4; b The diameters of inhibition zone (DIZs) of raw PET, PET-2, PET-3 and PET-4; c The durable antibacterial rate of PET-3 compared with the raw PET fabric (control); d Antibacterial kinetics of PET-3 as compared with raw PET against E. coli (ATCC 25,922) and S. aureus (ATCC 6538); e Ultra-high resolution fluorescence microscopy of E.coli treated with PET-3 for 5 min. Notes: the contacting time of a–b was 24 h, and error bars of c were based on the maximum and minimum values of three parallel samples