ZFIN Image: L et al., 2020, Figure 1

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Figure 1

Effects of zinc oxide nanoparticles (ZnO-NPs) on cell growth in human gingival squamous cell carcinoma (GSCC) and normal cells. Ca9-22 or OECM-1 cells were incubated with the indicated concentrations of ZnO-NPs for 24 h. The cell morphology (a) and viability (b) were assessed by the inverted phase contrast microscope and MTT assay, respectively. (c) Human normal keratinocyte cells (HaCaT) and gingival normal cells (HGF-1) were treated with the indicated concentrations of ZnO-NPs for 24 h, then cell viability was determined using MTT assay. Data represent the mean ± SEM of four independent experiments. * p < 0.05 compared with the control group.

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