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Figure 3 | Nanoscale Research Letters

Figure 3

From: A promising gene delivery system developed from PEGylated MoS2 nanosheets for gene therapy

Figure 3

In vitro cell toxicity assay of different layers of MoS 2 nanosheets. Relative viabilities of HepG2 (a), HeLa (b), and 293 T (c) cells determined by the MTT assay after incubation with various concentrations of MoS2, MoS2-PEG, and MoS2-PEG-PEI for 24 h. (d) Percentages of DHE-positive cells (cells with significant oxidative stress) after incubation with various concentrations of MoS2, MoS2-PEG, and MoS2-PEG-PEI for 24 h. H2O2 (200 μM) incubated cells were used as the control. Error bars were based on four parallel samples.

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