Figure 4From: A novel Poly(ε-caprolactone)-Pluronic-Poly(ε-caprolactone) grafted Polyethyleneimine(PCFC-g-PEI), Part 1, synthesis, cytotoxicity, and in vitro transfection study(a) Agarose gel electrophoresis of PCFC- g -PEI/DNA complexes at various N/P ratios. (b) Electrophoretic mobility analysis of PCFC-g-PEI/DNA complexes after DNase I treatment. DNA was released by adding 1 mg/ml heparin to the PCFC-g-PEI/DNA complexes. Both (a) and (b) used naked DNA as control.Back to article page