Fig. 1From: Assessment of a panel of interleukin-8 reporter lung epithelial cell lines to monitor the pro-inflammatory response following zinc oxide nanoparticle exposure under different cell culture conditionsEvaluating cytotoxicity of ZnO nanoparticles under submerged and ALI conditions. A. Cytotoxicity as determined by LDH release assay. Data are presented as mean x-fold increase over untreated control (submerged) or NaCl-nebulized control (ALI) (dashed line). Error bars indicate the SEM of at least three independent experiments. A one-way analysis of variance (ANOVA) with a subsequent Tukey’s Multiple Comparison test was performed. Values were considered significantly different compared to the unexposed (submerged) or NaCl-nebulized (ALI) control or as indicated with p < 0.05 (*), p < 0.001 (**) and p < 0.0001 (***)Back to article page