Fig. 2From: Surface modification of cobalt oxide nanoparticles using phosphonomethyl iminodiacetic acid followed by folic acid: a biocompatible vehicle for targeted anticancer drug deliveryFTIR spectra of only folic acid (a), FA-PMIDA-cobalt oxide nanoparticles (b), DOX-FA-PMIDA-CoO NP (c), and MTX-FA-PMIDA-CoO NP (d). Percentage of drug release at different pH (e)Back to article page