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. 2013 May 24;14(6):10852–10868. doi: 10.3390/ijms140610852

Figure 2.

Figure 2

(a–e) Fluorescent microscopy of cells treated with MNPs 0, 1, 5, 10 and 25 μg/mL, respectively. Blue: Hoechst nuclear staining. Red: PI staining (white arrows show PI positive cells); (f) PI staining via flow cytometry of cells treated for 72 h with MNPs (1–25 μg/mL) (p > 0.05, ANOVA).