TEMPERATURE AND PH RESPONSIVE POLYMERIC NANOPARTICLES FOR TARGETED OXALIPLATIN DELIVERY

In the present study temperature and pH responsive co-polymer chitosan-g-poly(N-isopropylacrylamide) (CS-g-PNIPAAm) was synthesized, characterized and efficiently loaded with oxaliplatin. Nanoparticles were evaluated for their physicochemical properties. The drug loaded nanoparticles showed smooth and spherical morphology with loading efficiency and drug content of about 80.7% and 48.7%, respectively. The in vitro drug release was significantly higher at tumor extracellular pH and temperature when compared to physiological pH and temperature. In conclusion, the developed nanoparticulate system is an effective dual responsive targeted drug delivery system for oxaliplatin with low toxic side effects.