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Fig. 1 | Particle and Fibre Toxicology

Fig. 1

From: Biotransformation of rare earth oxide nanoparticles eliciting microbiota imbalance

Fig. 1

Comparison of cell viabilities of G+ and G bacteria exposed to ENMs. a Heat maps displaying the toxicity of ENMs in E. coli and B. subtilis cells. E. coli and B. subtilis suspensions were exposed to different nanoparticles for 2 h. Then the cell viabilities were determined by bacteria counting colorimetric assay. Three replicates were conducted for each dosage. b Survival rate examination by CFU assay. The colonies of E. coli, P. aeruginosa, S. aureus and B. subtilis were counted after exposure to La2O3 at 250 μg/mL. Columns and error bars represent the mean and the standard deviation of three replicates. ***p < 0.001 compared to G cells by two-tailed Student’s t-test. c Live/Dead staining. E. coli and B. subtilis cells were incubated with La2O3 and stained by a Live/Dead staining kit for confocal microscopy imaging. Scale bar is 7 μm

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