Fig. 4. The epifluorescence microscopy images of P. aeruginosa cells on four membranes after 72 h filtration. (a) Representative the TFC membrane; (b) representative the TFN-S membrane; (c) representative the TFN-A membrane and (d) representative the TFN-S + A membrane, (the glare area was the overlapping parts of the dead cells and the live cells).
