Lyu, C., Chen, Y., Ning, Y., Guo, Q., Cai, X., Wang, D., Yang, L., Liu, J. (2026). A Stepwise‐Enhanced Schottky Heterojunction Enables Ultra‐Low‐Dose Radiodynamic Therapy via Matrix Remodeling and Electron–Hole Separation. Advanced Materials. https://doi.org/10.1002/adma.202521580