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. 2020 Aug 31;21(17):6305. doi: 10.3390/ijms21176305

Figure 32.

Figure 32

(a) MTT assay-cell viability and (b) relative ROS generation in MCF-7 cells treated with free PL (0.55 μM), PEG-ZnO NRs (20 μg/mL), and PL-PEG-ZnO NRs (20 μg/mL) with or without UV irradiation for 7 min. * p < 0.05 and ** p < 0.01. (c) Viability of MCF-7 cells treated with PEG-ZnO NRs (20 μg/mL) and Au/PEG-ZnO NRs (20 μg/mL) with or without UV irradiation; ** p < 0.01. (d) PL-Au/PEG-ZnO NRs induce selective killing in MCF-7, but not in hDFB cells in the absence and presence of UV light (** p < 0.01). Reproduced from [169] with permission of the American Chemical Society.