Published in Gene Therapy Weekly, January 31st, 2008
"Purification based on size exclusion chromatography of PEI/DNA polyplexes smaller than 200 nm has been shown to efficiently remove unbound PEI polymer. A novel purification method based on electrophoresis can purify PEI polyplexes independent of their size resulting in polyplexes with final PEI nitrogen/DNA phosphate ratios between 2.6 and 3.1. Also unbound PEI conjugates like PEGylated PEI and...
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