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The effect of Fe3O4@SiO2-SH nanoparticles on the proliferation (A) and viability (B) of human A549 lung carcinoma cells. The changes in the proliferation and viability were determined 48 h after the treatment by using Trypan blue exclusion analysis. Results are shown as the mean ± SD from three experiments. *—significantly different from the control (p ≤ 0.05). Cells treated with 0.25 and 0.5 µM doxorubicin were used as a positive control.
