School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, Korea.
Nano Lett. 2010 Jan;10(1):16-23. doi: 10.1021/nl9023319.
We demonstrate a recycled ion-flux through heterogeneous nanoporous junctions, which induce stable ion concentration polarization with an electric field. The nanoporous junctions are based on integration of ionic hydrogels whose surfaces are negatively or positively charged for cationic or anionic selectivity, respectively. Such heterogeneous junctions can be matched up in a way to achieve continuous ion-flux operation for stable concentration gradient or ionic conductance. Furthermore, the combined junctions can be used to accumulate ions on a specific region of the device.
我们展示了通过异质纳米多孔结实现的离子再循环通量,该结通过电场诱导稳定的离子浓度极化。纳米多孔结基于离子水凝胶的集成,其表面分别带负电荷或正电荷,以实现阳离子或阴离子的选择性。这种异质结可以以一种方式匹配,以实现稳定浓度梯度或离子电导率的连续离子通量操作。此外,组合结可用于在器件的特定区域上积累离子。