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Synthesis of ZW800–1C-conjugated PCL-ran-PLLA-ran-PGA (PCLG) copolymers. (A) Scheme of copolymerization and NH -functionalized PCLGs, (B) 1H-NMR and13 C-NMR spectra of Cl-PCLG copolymers, (C) FT-IR spectra of NH2-functionalized PCLGs, (D) Conjugation of NHS-activated ZW800–1C ester to NH2-functionalized PCLGs.
