Figure 1From: Comparison of nanoparticle-mediated transfection methods for DNA expression plasmids: efficiency and cytotoxicityTransfection efficiency and toxicity of pIRES-hrGFPII- eIL-12. GFP- (■) and PI- (◊) positive cells 24 h after transfection with pIRES-hrGFPII-eIL-12. Mean cell proliferation (▲) (48 h and 72 h after transfection with pIRES-hrGFPII-eIL-12). Each bar represents a mean ± SD. * p ≤ 0.05.Back to article page