Fig. 3

Uptake profiles of DP-AD7. a Fluorescence positive ratios of ESBLs-E. coli, K. pneumoniae, MDR-A. baumannii, MDR-P. aeruginosa, MRSA, B. subtilis, MRSE and E. faecalis measured by flow-cytometry after incubation with 1 μM FAM labeled DP-AD7 for 1 h in dark. b The FAM positive rate of the tested bacterial strains measured by flow cytometry after incubation with FAM-labeled DP-AD7 in the dark at 37 °C for 5, 10, 30 and 60 min. c CLSM images of ESBLs-E. coli (upper panel) and B. subtilis (lower panel) after incubation with cy5-labeled DP-AD7 for 1 h in dark at 37 °C. FM4-64 was used to stain the bacterial cell membrane. Bar = 2 μm