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Characteristics of ZnPc/CPT-TPPNPs: (A) 1H-NMR spectrum of TL-CPT-PEG1K-TPP in DMSO-d6. (B) Size distribution of ZnPc/CPT-TPPNPs by dynamic light scattering (DLS). (C) BIO-TEM of ZnPc/CPT-TPPNPs; the nanoparticle size in TEM was about 49 nm. (D) Colloid stability test of ZnPc/CPT-TPPNPs at 4℃ in water. (E) Fluorescence luminescence spectra of empty NPs, free ZnPc, and ZnPc/CPT-TPPNPs in DMSO; excitation: 630nm.
