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▌Nanoarchitected Hydrogel Membranes With Tri-Continuous Ion Pathways for Antibiofouling Salinity-Gradient Energy Harvesting
具三連續離子通道的奈米架構水凝膠薄膜用於抗生物汙損鹽差能擷取


Kang-Ting Huang, Chia-An Lung, Chung-Yi Weng, Caiyun Wang, Chun-Jen Huang* and Li-Hsien Yeh*
https://doi.org/10.1002/adfm.78141
SEED Member: Li-Hsien Yeh

 

Heterogeneous nanoarchitected hydrogel membrane (PATM/PG-AAO)
 

Major Contributions
 

1. Designed a heterogeneous ionic diode membrane (PATM/PG-AAO) integrating a phytic acid (PA)-regulated polyelectrolyte hydrogel with a pore-gradient anodic alumina nanochannel substrate, establishing a tri-continuous ion transport framework.

2. Space-charge-governed ion selectivity couples with geometry-enhanced ionic rectification (rectification ratios ~6.1–9.4); PA adds fixed charges and reinforces the hydrogel network, delivering 52.86 W m⁻² under a 5 M/0.01 M NaCl gradient.

3. PA endows the membrane with antibiofouling and antimicrobial properties, suppressing adhesion and inactivating E. coli and S. epidermidis, so the power output remains stable after bacterial exposure.




主要貢獻
 

1. 設計異質離子二極體薄膜(PATM/PG-AAO),將植酸(PA)調控的聚電解質水凝膠與孔徑梯度陽極氧化鋁奈米通道基材結合,建立三連續離子傳輸架構。

2. 空間電荷主導的離子選擇性與幾何增強的離子整流(整流比約 6.1–9.4)協同作用;植酸提供高密度固定電荷並強化水凝膠網絡,在 5 M/0.01 M NaCl 濃度差下功率密度達 52.86 W m⁻²。

3. 植酸使薄膜兼具抗生物汙損與抗菌性,抑制細菌附著並滅活大腸桿菌與表皮葡萄球菌,接觸細菌後仍維持穩定的功率輸出。