Figure 1
From: Cytotoxicity of quantum dots and graphene oxide to erythroid cells and macrophages
Biological influence of QDs on J774A.1 cells. (A) Bright field images of J774A.1 cells treated with QDs with different surface modifications at 47 μg/ml for 5 days (×40). (B) The bar graph represents the relative cellular flat surface area of J774A.1 cells treated with 47 μg/ml QDs coated with PEG-NH2 for 5 days (n = 50). (C) Cell proliferation was evaluated with the BrdU incorporation assay upon treatment with 47 μg/ml QDs with different surface modifications for 24 h (n = 6). Asterisk indicates P < 0.001.