Fig. 4.
a Relations between Young’s (elastic) modulus and the indentation depth, obtained for bladder cancer cells, measured with a set of AFM probes. Each point denotes a mean modulus ± standard error obtained from all measurements. b Comparison of Young’s modulus means calculated for a whole and plateau region of the indentation depth (error bars represent the standard error of the mean, asterisk (***) denotes p value < 0.001 quantifying the statistical difference between the corresponding pair of reference and cancerous cell line. Note Y scale for MLCT is twofold larger than for the other cantilevers)