Fig. 2From: Self-amplification of oxidative stress with tumour microenvironment-activatable iron-doped nanoplatform for targeting hepatocellular carcinoma synergistic cascade therapy and diagnosisStructural and compositional nanoplatform characterisations. a–c TEM images of unetched HMON NPs, HMON NPs, and Fe-HMON NPs. Scale bar = 100 nm. d High-resolution TEM images of Fe-HMON NPs and elemental mapping (Si, O, Fe, and S) in Fe-HMON NPs. Scale bar = 50 nm. e Fe2p X-ray photoelectron spectroscopy (XPS) spectra of Fe-HMON NPs. f High-resolution TEM images of Fe-HMON NPs. g Selected-area electron diffraction patterns of Fe-HMON NPs. h XRD patterns of MSN NPs, HMON NPs, and Fe-HMON NPsBack to article page