Figure 2.
1H NMR spectrum of polyHPMA-SS-polyHPMA (recorded in d6-DMSO) (A), and 1H NMR spectra of the amphiphilic and block polymeric prodrug [polyDOX-block-(polyHPMA-SS-polyHPMA)-block-polyDOX] (solvent: d6-DMSO) (B). Size exclusion chromatogram (SEC) of the final prodrug (MW 93.5 kDa) (C), and its degraded low-MW segments (MW 41.2 kDa) (D). Characterization of NPs and NPs(Ce6) with size distribution from DLS (E), UV‒Vis absorption spectra (F); and TEM morphology of NPs (G) and NPs(Ce6) (H), scale bar: 50 nm.