Fig. 5From: Tumor microenvironment-responsive nanoparticles for cancer theragnostic applicationsSchematic illustration of (a) synthesis of ROS–responsive prodrug mPEG-TK- DOX and (b) illustration of ROS–responsive prodrug micelle and DOX-loaded prodrug micelle for drug delivery. Reproduced with permission [1] Copyright © 2018, Royal Society of ChemistryBack to article page