Fig. 1

Differential transfection efficiencies of SK-BR3 and CT26 cells. GFP reporter gene plasmids were delivered into both a SK-BR3 and b CT26 cells either uncomplexed (DNA alone), complexed to PEI, or complexed to AuPAMAM. SK-BR3 cells were given 48 h for incubation, while CT26 cells received 72 h. Transfection efficiency was measured via quantification of percent transfection and mean fluorescent intensity (MFI)