| http://www.w3.org/ns/prov#value | - In preferred embodiments, this invention relates to cationic lipopolymers comprising a polyethylenimine (PEI), a biodegradable group, and a relatively hydrophobic group, and to methods of using such lipopolymers to deliver bioactive agents such as DNA, RNA, oligonucleotides, proteins, peptides, and drugs.
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