Figure 10

The percentage of FITC-positive cells (a, b) and Mean fluorescence intensity of FITC-labelled PAA-CeO (c, d) nanoparticles after incubation in UN- (a, c) and RA- (b, d) SH-SY5Y cells for 30 min, 1 h, 2 h, 3 h and 6 h, respectively. Control cells were treated with a vehicle (time point 0). Data are presented as the mean ± SEM from 2 separate experiments with 2 replicates each. ^P < 0.05, ^^P < 0.01 and ^^^P < 0.001 versus 3 mM at 30 min; ^&&P < 0.01 and ^&&&P < 0.001 1.5 versus 3 mM FITC-PAA-CeO for particular time point.