Skip to main content
Fig. 2 | Journal of Nanobiotechnology

Fig. 2

From: Label-free cell based impedance measurements of ZnO nanoparticles—human lung cell interaction: a comparison with MTT, NR, Trypan blue and cloning efficiency assays

Fig. 2

Effects of 1, 5 and 20 µg/cm2 ZnO NPs on A549 cell survival. a, c, e and g Viability A549 cells evaluated by MTT test after 24, 48, 72, and 144 h of treatment. b, d, f and h Viability A549 cells evaluated by neutral red assay after 24, 48, 72 and 144 h of treatment. Rap (10 μM Rapamycin) and STS (1μMStaurosporine) were used as positive control of autophagy and apoptosis induction respectively. Experiments were performed in triplicate; * = p ≤ 0.05; p value Wilcoxon-Mann–Whitney test

Back to article page