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Figure 7 | Nanoscale Research Letters

Figure 7

From: The Photodynamic Effect of Different Size ZnO Nanoparticles on Cancer Cell Proliferation In Vitro

Figure 7

a Decrease of cell index after different concentration ZnO NPs was incubated in the cell system for about 72 h without UV irradiation. b Comparison of cell inhibition for different-sized ZnO NPs in the absence of UV irradiation. c Decrease in cell index after different concentration ZnO NPs was incubated in the cell system for about 72 h with UV irradiation for 180 s. d Comparison of cell inhibition for different-sized ZnO NPs in the presence of UV irradiation for 180 s

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