Fig. 2From: A chitosan-based cascade-responsive drug delivery system for triple-negative breast cancer therapyStructure and physicochemical characterization of the CPP-CS-co-PNVCL1@DOX NPs. a FT-IR spectra, b 1H NMR spectrum of the CPP-CS-co-PNVCL1@DOX NPs, c UV–vis spectra, d zeta potential values, with e SEM and f TEM images of the CPP-CS-co-PNVCL1@DOX NPsBack to article page