Fig. 7
The functionalization of HPAESS-4 with guanidine further improves transfection capability. a, b Gluciferase activity of HKC8 and HeLa cells after transfection with different vectors. Data points marked with asterisks (*) are statistically significantly higher relative to the HPAESS-4 group. c Fluorescence images of HeLa cells 48 h post transfection with various vectors at w/w ratios of 20:1. The scale bars represent 200 μm. d The percentage of GFP-positive cells after transfection, asterisk indicates significantly higher transfection efficiency in comparison with the HPAESS-4 group. e Representative histogram distributions of UT HeLa cells and the ones after transfection with HPAESGs at the w/w = 20:1. Data are shown as average ± SD; n = 4
