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A novel non-viral gene carrier based on N,N,N-trimethylchitosan (TMC) has been fabricated. First, well-defined copolymer P(PEGMA-co-DMAEMA) was synthesized through reversible addition fragmentation chain transfer (RAFT) polymerization of poly(ethylene glycol) methyl ether methacrylate (PEGMA) and N,N-(2-dimethylamino)ethyl methacrylamide (DMAEMA). Then allyl group grafting N,N,N-trimethylchitosan...
The grafting modified chitosan with l-glutathione (GSH) end capped PEG brush-like poly [poly(ethylene glycol) methacrylate] (PMPEG), CS-PMPEG-GSH, as the pDNA condensed vector material could result in a much higher transfection efficiency and lower cytotoxity for NIH3T3 cells. In this work, we have further examined the morphology stabilities of CS-PMPEG-GSH/pDNA vectors at different medium pH values...
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