Recently, FeO@mSiO2/Au‐CAT Janus self‐propelled nanocatalytic robots (JNCRs) with PTT effects have attracted considerable attention.[148] JNCRs, exhibiting CAT‐like activity, provide propulsion for their autonomous movement, catalyzing the generation of O2 from H2O2 to improve the tumor's hypoxic environment, thereby enhancing tissue penetration. Here, CAT is linked to neoplasm.