Fig. 4From: Surface modification of cobalt oxide nanoparticles using phosphonomethyl iminodiacetic acid followed by folic acid: a biocompatible vehicle for targeted anticancer drug deliveryCytotoxicity of FA-PMIDA-CoO nanoparticles towards normal human immune cells (d), cytotoxicity of PMIDA-CoO nanoparticles and FA-PMIDA-CoO nanoparticles towards KB and KG1a cell lines (a), and cytotoxicity of DOX-FA-PMIDA-CoO nanoparticles and MTX-FA-PMIDA-CoO nanoparticles towards KB and KG1a cell lines (b). n = 6; values are expressed as mean ± SEM. Asterisk indicates the significant difference as compared to control groupBack to article page