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. Author manuscript; available in PMC: 2014 Jan 7.
Published in final edited form as: Mol Pharm. 2012 Dec 18;10(1):378–385. doi: 10.1021/mp300500y

Figure 3.

Figure 3

Optimum transfection condition. (a) Ratio-dependent transfection efficiency and (b) cell viability. Rx7/pLuci polyplexes prepared at different weight ratios and sRx7/pLuci polyplex prepared at weight ratio 4 were transfected to H9C2 cells that were pre-cultured under hypoxia or normoxia. Luciferase activity was calculated as percent values relative to PEI. Cytotoxicity was determined by MTT assay and expressed as relative cell viability compared to the control. Data represent mean ± SD (n=4, triplicates; *p < 0.01).