Fig. 14. Micronucleus (MN) frequency (‰) of MCF-10A cells treated with bare and silica-coated CoFe-MNPs showing binucleated cell and CBPI (cytokinesis-blocked proliferation index). The concentration 31 μg mL^–1 is not given in this figure, as its effect was not significant. The data represent 2000 binucleated cells for MCF-10A. *p < 0.05 vs. control, **p < 0.01 vs. control, ***p < 0.001 vs. control.