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. 2018 Apr 23;8(4):268. doi: 10.3390/nano8040268

Figure 8.

Figure 8

Fluorescence micrographs of E. coli biofilms grown up onto ZnO NRs surfaces: (a) without; or (b) with light treatment. Alive cells were stained in green and dead cells in red; (c) Light-dose dependence cytotoxic effect on E. faecalis MSCL 302, L. monocytogenes ATCL3C 7644 and E. coli O157:H7 biofilms grown up onto ZnO NRs coated surfaces. Non-illuminated biofilms grown on plastic surfaces were used as control and effect the NRs in absence of light was expressed as dark toxicity. Reproduced with permission from [86].