Agarose gel electrophoresis of plasmid DNA and OTMCS-PEI-R18 /DNA complexes.

<p>Agarose gel electrophoresis of OTMCS-PEI-R18-h/DNA(<b>A</b>) and OTMCS-PEI-R18-l/DNA(<b>B</b>) complexes at various w/w ratios, respectively. (<b>C</b>) Protection of plasmid DNA from degradation by DNase I at different concentrations of 0, 3, 6, 9, 18, 27, 36, 45, 54 and 63 U DNase I/μg DNA. (<b>D</b>) Protection of plasmid DNA from dissociation by sodium heparin at varying concentrations of 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200 μg/mL.