Fig. 6

NP distribution represented as AUC for each tumor cell type (HeLa, SiHa, or CaSki) as a function of NP treatment group, relative to spheroid type (LO, black and HD, gray). Values of all significant correlations, including each treatment group relative to unmodified NPs, relative to other treatment groups, or relative to the same treatment group in a different spheroid type are given with degree of significance indicated (* p < 0.01, ** p < 0.001, *** p < 0.0001, **** p < 0.00001). Error bars: average ± standard deviation (n = 3)