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Transfection of DDNDs prepared at N/P ratio of 60 in (A) Capan-1 and (B) CD18/HPAF cells. Luciferase expressing gwiz plasmid complexed with Lipofectamine was used as positive control. Luciferase expressing gwiz plasmid alone or complexed with PB copolymers in the presence or absence of GEM/Pluronic F127 self-assembly were used as controls. * represents statistically significant differences (p<0.05) while same letters represent statistically insignificant difference (p>0.05).
