Effects of the Absorption Behaviour of ZnO Nanoparticles on Cytotoxicity Measurements

Figure 10

The response of lymphoma cells (U937) exposed to ZnO nanoparticles Z1 (85.7 nm) and Z2 (190 nm) for 24 or 96 h. Control represents untreated cell lines. Values are means ± SD (𝑛=3) and all comparisons were made using two-tailed Student’s t-test (^∗𝑃<0.05; ^∗∗𝑃<0.01; ^∗∗∗𝑃<0.001).