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Cell viability of RAW 264.7 macrophage cells exposed to carbon dots (CDs). Data represents mean ± SD. with n = 9. Bars marked with letters indicate significant differences (p < 0.01). Significance. demarcated by: a—significantly different (p < 0.001) compared to 0 μg/mL CD control, b—significantly different (p < 0.001) compared to lipopolysaccharide (LPS)-stimulated 0 μg/mL CD control.
