CAT and neoplasm: Jiang X. et al. (2018) achieved tumor phototherapy and simultaneous photoacoustic/thermal imaging and computed tomography by using a developed iridium oxide catalase nanozyme with extraordinary photothermal conversion efficiency and X-ray absorption coefficient showing a typical example of fully exploiting the multifunctional properties of nanozymes for tumor imaging and treatment. The BSA-IrO2 NPs used in the study was 1.5 mM, 200 μL via an intravenously injection (Jiang X. et al., 2018).