Box (centre line at the median; upper and lower bounds at 75th and 25th percentiles, respectively; one dot per animal) and whisker (minimum and maximum values) plot of radioactivity accumulation normalized by tumour volume (determined by MRI) in animals from all groups (n = 6 for BSA-NPs in water and nanobots in urea, n = 5 for the other groups, biological replicates), shown as percentages of the injected dose per cubic centimetre of tumour (%ID cm -3 ). Statistical analysis was performed via one-way analysis of variance (ANOVA).
