Fig. 2From: Hyaluronic acid-coated chitosan nanoparticles induce ROS-mediated tumor cell apoptosis and enhance antitumor efficiency by targeted drug delivery via CD44Viability of A549 cells and HepG2 cells. Viability of A549 cells (a) and HepG2 cells (b) after incubation with naked HA-coated CS NPs. Viability of A549 cells (c) and HepG2 cells (d) after incubation with free 5-Fu, 5-Fu-loaded CS NPs, 5-Fu-loaded HA-coated CS NPs and the combination of free HA and 5-Fu-loaded HA-coated CS NPs for 48 h. The results are expressed as the mean ± SD (n = 3)Back to article page