Fig. 3

The character of siRNA@CPG@Gold Nanoshell system. a The nucleic acid electrophore diagram with the above conditions’ treatment. b The laser confocal microscopy image of siRNA@CPG@Gold Nanoshell cell uptake with different incubation time. c Transfection efficiency of lip2000 and Gold nanoshell with HER-2-siRNA. Data are given as mean ± SD (n = 5). *P < 0.05. d NIR images of IR-820 and IR-820-siRNA@CPG@Gold Nanoshell dynamics in MFC tumor-bearing mice at different times after intravenous injection. e The main organ distribution of IR-820 and IR-820-siRNA@CPG@Gold Nanoshell after 8 h injection