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LDH leakage from L929 mouse fibroblasts after 24 h treatment with three types of QDs (3.5, 7, and 14 μg/mL) at 24 h. Data are the mean ± SD of three separate experiments. Significance was indicated by: * p < 0.05 vs. control cells. # p < 0.05 vs. 2.2 m CdTe QDs.
