Fei Gou, Yilin Yao, Qiuting Wang, Qingyan Liu, Fuzhen Zheng, Wenju Chang, Jie Shen, Huaqiang Zeng. "Flexible Crown‐Ether Polyimides Break the K + /Na + Selectivity Barrier in Artificial K + Channels." Angewandte Chemie International Edition, 2026. doi:10.1002/anie.202520146