Fig. 1
From: Biosafety and Antibacterial Ability of Graphene and Graphene Oxide In Vitro and In Vivo
G and GO cytotoxicity (a, b). TEM images of G (a) and GO (b) showed the nano-network formed. c Cytomorphology of BMSCs. d Alizarin red for calcium deposition. e Oil red O for lipid. f Cell activity after G and GO treatment, *P < 0.01 with control group, # P < 0.01 with control group, ○ P < 0.05 with G 50 μg/ml group, ☆, □, △ P < 0.01 with the same concentration of G group. r2 (G) = 0.843, r2 (GO) = 0.939. Scale bars a, b 200 nm, c, d 100 μm, e 50 μm. r, correlation coefficient