Fig. 3.

Quantitative analysis of the cellular and nuclear deposition of MWCNTs and SWCNTs. a Number of CNT aggregates per cell; b total area of CNT aggregates per cell (μm²); c number of CNT aggregates per nucleus, d total area of CNT aggregates per nucleus (μm²). All conditions were significantly different from the control condition (vehicle) and from each other (one way ANOVA, Tukey multiple comparison) except for the different doses of MWCNTs [not significant (n.s.)]. The box plots represent median and quartiles, and the whiskers represent the 1.5 interquartile range of the lower and upper quartile (N = 50 for each condition). 25 and 100 represents exposure concentrations as μg/ml