Figure 6From: Biscarbamate cross-linked low molecular weight Polyethylenimine polycation as an efficient intra-cellular delivery cargo for cancer therapy Silencing efficiency of the PEI-Bu/siRNA polyplex. The N/P ratio of PEI-Bu to siRNA was 115.05. Saline was used as control in SMMC-7721 (stably expressing luciferase gene) tumor bearing mice. (n = 6, data represent as mean ± SD).Back to article page