Fig. 4From: Optically transparent vertical silicon nanowire arrays for live-cell imagingCell behaviour as a function of SiNW substrate. For division frequency (a), each circle corresponds to the proportion of cells dividing in a single field of view. For all other plots (b–d), each circle corresponds to a single cell averaged over 24 h. Error bars represent 95% confidence intervals of the mean. *p < 0.05Back to article page