fig2
From: Application of polymeric nanomaterials in cancer therapy: from smart delivery to precision therapy
Figure 2. Targeting patterns of polymers and drug release under stimuli in cancer therapy. (A) PEGylation of polymers. (B) Production of biomimetic modification of polymers. (C) Schematic presentation of stimuli-responsive nanoparticles with response. (D) Schematic description of targeting mechanisms in cancer. Figure created by MEDGY. PEG: Polyethylene glycol; GSH: glutathione; EPR: enhanced permeability and retention; PTT: photothermal therapy; PDT: photodynamic therapy.
