Abstract
The development of novel xyloglucan-block-poly(ϵ-caprolactone) (XGO-b-PCL) nanoparticles coated with the mucoadhesive polysaccharide chitosan is described. XGO-b-PCL nanoparticles show monodisperse size distribution (Rh = 50 nm). Curcumin is successfully encapsulated within the PCL core within drug to polymer ratio of 1:5 (w/w). The coating of nanoparticles with chitosan results in an increased particle size and positive surface charge due to the polycation nature of the chitosan. Mucoadhesive properties of chitosan-coated nanoparticles are demonstrated by its exceptional ability to interact with mucin through electrostatic forces. Finally, in vitro studies show that curcumin-loaded nanoparticles exhibit higher cytotoxic effects against B16F10 melanoma cells than L929 fibroblast cells.
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