Journal
NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE
Volume 6, Issue 5, Pages 689-697Publisher
ELSEVIER
DOI: 10.1016/j.nano.2010.01.011
Keywords
Thiolated chitosan; Nanoparticles; Poly(methyl methacrylate); Paclitaxel; Cytotoxicity
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The aim of the present work was to prepare and characterize poly(methyl methacrylate) nanoparticles coated by chitosan-glutathione conjugate so as to encapsulate insoluble anticancer drugs. Nanoparticles were synthesized through radical polymerization of methyl methacrylate initiated by cerium (IV) ammonium nitrate. Paclitaxel (PTX), a model anticancer drug, was encapsulated in nanoparticles with a maximal encapsulation efficiency of 98.27%. These nanoparticles showed sustained in vitro release of the incorporated PTX (75% of the loaded dose was released in 10 days). All nanoparticles had positive charge and were spherical, with a size range of about 130-250 nm. The PTX-loaded nanoparticles showed cytotoxicity for NIH 3T3 and T47D breast carcinoma cells, along with no cytotoxicity for two colon cell lines (HT29, Caco2).
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