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Branched poly (trimethylphosphonium ethylacrylate‐ co ‐PEGA) by RAFT: alternative to cationic polyammoniums for nucleic acid complexation

2018; Wiley; Volume: 3; Issue: 4 Linguagem: Inglês

10.1002/jin2.50

2058-3273

Alexander Cook, Raoul Peltier, Tammie R. Barlow, Joji Tanaka, J.A. Burns, Sébastien Perrier,

Biopolymer Synthesis and Applications

Cationic and highly branched poly (trimethylphosphonium ethylacrylate-co-poly (ethylene glycol) acrylate) (p (TMPEA-co-PEGA)), and its ammonium equivalent, have been synthesised from post-polymerisation modification of a poly (bromo ethylacrylate-co-poly (ethylene glycol) acrylate) (p (BEA-co-PEGA)) precursor polymer produced using reversible addition fragmentation chain transfer (RAFT) polymerisation. The cationic polymers were evaluated for their ability to complex nucleic acids, their in vitro cytotoxicity and their GFP pDNA transfection efficiency. The results show RAFT copolymerisation of BEA and PEGA is a simple route to polyphosphoniums showing reduced cytotoxicities and higher transfection efficiencies than their polyammonium alternatives.