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Cellular ATP content measured in CACO-2 cells after exposure to SiQDs for 14 days using FLASC (Sigma-Aldrich). The ATP contents (% of control) are indicated as means ± SD for n = 3 experiments. Cellular ROS content measured in CACO-2 cells after exposed to SiQDs for 14 days using H2DCFDA (Sigma-Aldrich). The ROS content (% of control) is indicated as means ± SD for n = 3 experiments. Significant effects (p < 0.05) are marked with an asterisk *.
