Figure 2From: Surface modification of TPGS-b-(PCL-ran-PGA) nanoparticles with polyethyleneimine as a co-delivery system of TRAIL and endostatin for cervical cancer gene therapy Chemical structure (A) and typical 1 H NMR spectra (B) of TPGS- b -(PCL- ran -PGA) copolymer. Back to article page