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