• Ionic polymers can directly serve as high-performance ion-selective membranes when it was physically confined within submillimeter-sized cylindrical pore.

• The universality of this strategy is demonstrated in preparing cation/anion-selective membrane.

• With real seawater and river water, the output power density of a three-chamber cell on behalf of repeat unit of reverse electrodialysis system can reach up to 8.99 W m⁻².

中文翻译：

---

用于渗透能量转换的亚毫米侧向约束抗溶胀聚电解质水凝胶

• 
  当离子聚合物被物理限制在亚毫米大小的圆柱形孔中时，它可以直接用作高性能离子选择性膜。

• 
  这种策略的普遍性在制备阳离子/阴离子选择性膜中得到了证明。

• 
  对于真实的海水和河水，代表反向电渗析系统重复单元的三室电池的输出功率密度可以达到 8.99 W m⁻²。