[Formation and aggregation behavior of polyethyleneimine-DNA complexes].


In vitro gene delivery, polyethyleneimine (PEI) has been described as one of the most efficient nonviral vector. Herein the formation mechanism of PEI/DNA complexes is elucidated. The transition phase of "bead-on-string" structure in the formation of complexes was supposed to exist through spectroscopy, electrophoresis and transmission electron microscopy… (More)


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