Figure 4: Effect of FeCp2 and FeCp2BF4 on MCF10A cells viability determined by calcein accumulation. MCF10A cells were exposed to (A) FeCp2 and (B) FeCp2BF4, at different concentrations during 1, 2, 3, 4, 12, 24 and 48 h. Each point represents mean value + SD, with a number of replicates, n= 3 (p < 0.05).