Department of Electrical Engineering and Computer Science, The University of Michigan, Ann Arbor, Michigan, USA.
Chem Soc Rev. 2010 Mar;39(3):923-38. doi: 10.1039/b822554k. Epub 2009 Oct 13.
Ionic rectifying effect is a unique ion transport phenomenon observed in certain types of nanofluidic devices and cannot be implemented in microfluidics. Analogous to a diode in solid-state electronics, these diode-like nanofluidic devices can be used to turn the ionic flow on and off depending on the polarity of the applied electric-field. In this tutorial review, we summarize recent advances in the experimental and theoretical studies of ion current rectification in several types of nanofluidic devices. We also present a unified model to elucidate the physical mechanism behind the asymmetric ion transport behavior in nanofluidics.
离子整流效应是在某些类型的纳流控设备中观察到的一种独特的离子输运现象，无法在微流控中实现。类似于固态电子学中的二极管，这些类似二极管的纳流控设备可用于根据所施加电场的极性来打开和关闭离子流。在本教程综述中，我们总结了几种纳流控设备中离子电流整流的实验和理论研究的最新进展。我们还提出了一个统一的模型，阐明了纳流控中不对称离子输运行为背后的物理机制。
