Fig. 4From: Touchable 3D hierarchically structured polyaniline nanoweb for capture and detection of pathogenic bacteriaa SEM images of 3D HPN captured E.coli O157:H7, S. enteritidis, and S. aureus cells at a cell number of 103, 105, and 107 CFU/mL. Scale bars are 5 μm. b Cell capture efficiency results of 3D HPN at a different cell number from 103 to 107 CFU/mL via touching. c Representative images of the colony-counting assay results after rubbing E.coli O157:H7 captured 3D HPNBack to article page