ReviewPublished 22 September 2026Multifunctional Cu 2-x Se nanomaterials for cancer theranostics: recent advances, therapeutic mechanisms, and translational challengesJingchao He · Jiachao Xie · Yunxiao Peng · Haicheng Yu · Lina Chen · Xiaohong Wang · Haibo SunFrontiers in Chemistrydoi 10.3389/fchem.2026.1902573