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(A) Chemical structure of the PEG-PLL-PLLeu copolymer, formation of the micelle and the release behavior of ICG in cells. (B) Survival of H460 cells without and with 808 nm laser irradiation (green, calcein AM; red, propidium iodide). (C) Fluorescence images of organs and tumors in NCI-H460 tumor-bearing mice after the injection of ICG-labeled PEG-PLL-PLLeu micelles. Adapted from [187], with permission. Copyright: 2013 American Chemical Society.
