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The synthesis and self‐assembly of DOPA containing diblock copolypeptides into spherical vesicles is described. DOPA residues are naturally abundant in mussel adhesive proteins and are responsible for extensive covalent crosslinking of these materials upon oxidation. We found that vesicles could be formed from copolypeptides containing different amounts of DOPA substituted into hydrophobic segments,...
An arginine‐leucine block copolypeptide (R60L20) is synthesized, which is capable of forming vesicles with controllable sizes, able to transport hydrophilic cargo across the cell membrane, and exhibit relatively low cytotoxicity. The R60L20 vesicles also possess the ability to deliver DNA into mammalian cells for transfection. Although the transfection efficiency is lower than that of the commercially...
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