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Keywords:

  • atom transfer radical polymerization (ATRP);
  • folic acid;
  • nanoparticles;
  • poly(ethylene glycol);
  • targeted delivery

Abstract

Thumbnail image of graphical abstract

Poly(L-lactic acid)-block-poly(poly(ethylene glycol) monomethacrylate) (PLLA-b-PPEGMA) has been prepared by the ring-opening polymerization of lactide with a double-headed initiator, 2-hydroxyethyl 2′-methyl-2′-bromopropionate (HMBP), followed by atom transfer radical polymerization (ATRP) of poly(ethylene glycol) monomethacrylate (PEGMA). PLLA-b-PPEGMA nanoparticles with encapsulated Fe3O4 are prepared by a solvent evaporation/extraction technique, and then further functionalized with folic acid, a cancer targeting ligand. Our results show that such functionalized PLLA-b-PPEGMA nanoparticles have good potential as carriers for targeted drug delivery in cancer treatment.