Figure 8From: A novel Poly(ε-caprolactone)-Pluronic-Poly(ε-caprolactone) grafted Polyethyleneimine(PCFC-g-PEI), Part 1, synthesis, cytotoxicity, and in vitro transfection studyCytotoxicity of PCFC- g -PEI and PEI (25 KD) at various concentrations in two cell lines. (A) 293 T and (B) A549. Cell viability were detected by MTT assay (mean ± SD, n = 3). The standard deviation is shown by the error bars.Back to article page