S-EPMC11342633 - A bioinspired pseudopeptide-based intracellular delivery platform enhances the cytotoxicity of a ribosome-inactivating protein through multiple death pathways† † Electronic supplementary information (ESI) available: 1H NMR spectrum of PP50, effects of PP50 on A549 cell viability, Annexin V/PI double staining of A459 cells after 1 h of treatment with PP50-0.2/saporin and control groups plus 24 or 48 h of further incubation, confocal microscopy images and fluorescence intensity profiles of A549 cells after 1 h of treatment with free FITC-saporin plus 24 h of further incubation, and A549 cell viabilities after inhibitor treatment. See DOI: https://doi.org/10.1039/d4bm00600c