Figure 6.

Diffusion of endosomes shows ageing behaviour. (a,c) e-tMSD as a function of time t show clear dependence on the aging time $t_a$. Different curves correspond to e-tMSDs calculated for different aging times. The error bars correspond to standard errors. (b,d) The e-tMSDs as functions of the duration of trajectories, T, calculated at $t=0.2$ s. The error bars represent the standard error of the mean. The dashed lines are fit by the exponential function $aexp(-bT)$ with parameters a, b and their 95% confidence intervals given by $[0.0458\pm 0.0021,0.0987\pm 0.0074]$ for (b) and $[4.9189\pm$1.5337, 0.1423$\pm 0.0872]$ for (d) .