Fig. 8. Histogram representing cell viability based on MTT assay for (a) A549, and (b) MRC-5 cells treated with different concentrations of ZnONPs, CEN-ZnO NPs and cyanobacterial cell extract. Error bars were calculated based on standard deviations of three replications per group (N = 3). In vivo measurement of reactive oxygen species (ROS) generation induced by indicated concentrations of CEN-ZnO NPs in bacteria cells, (c) P. aeruginosa, and E. coli, (d) S. aureus. Error bars were calculated based on standard deviations of three replications per group (N = 3).
