Figure 1From: Escherichia coli-derived outer membrane vesicles are genotoxic to human enterocyte-like cellsElectron micrographs of preparations of outer membrane vesicles. E. coli OMVs were recovered following the overnight growth of bacteria in LB broth. OMVs are indicated by black arrows. Magnification 93 000. Size bar indicates 200 nm.Back to article page