Fig. 13From: Nanoparticles for MRI-guided radiation therapy: a review(Reprinted with permission from Liu et al. (2020), copyright 2020, American Chemical Society)Manganese dioxide nanoparticles, with T1-MRI contrast enhancing properties, loaded with Acridine Orange (AO), degrading inside hypoxic tumour cells to release oxygen and enhance sensitivity to radiotherapyBack to article page