Figure 5. Fold changes in mRNA expression tested by qRT-PCR in A549 and 95D cells treated with differently sized nanoparticles.

Results of qRT-PCR for (A–B) A549 and (C–D) 95D cells after 48-h incubation with 5-nm, 10-nm, 20-nm, or 40-nm Au-NPs. *P<0.05, ***P<0.001 vs. control. Error bars indicate the SD values from three independent experiments.