Angstrofluidics: Walking to the Limit
Angstrofluidics: Walking to the Limit
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DOI：
10.1146/annurev-matsci-081320-032747
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发表时间：
2022-03
影响因子：
9.7
通讯作者：
Y. You;Abdulghani Ismail;Gwang-Hyeon Nam;S. Goutham;A. Keerthi;B. Radha
中科院分区：
文献类型：
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作者：
Y. You;Abdulghani Ismail;Gwang-Hyeon Nam;S. Goutham;A. Keerthi;B. Radha
埃尺度的流体通道在自然界中普遍存在，并且在调节细胞交通、信号传导和响应刺激中起重要作用。随着几种尖端的自下而上和自上而下的制造方法的出现，合成埃通道现在已经成为现实。特别是，使用原子级薄的2D材料和纳米管作为构建流体管道的组件已经将制造的极限推到了埃级。在这里，我们提供了一个概述的纳米和angstrofluidic通道的制造方法的最新发展，同时将它们分类的基础上的维度（0D孔，1D管，2D狭缝），沿着在测量技术的最新进展。我们讨论了在这些通道中的各种刺激和离子迁移率的变化，流功率，渗透功率与孔径在所有的维度的离子运输。最后，我们强调了智能离子设备发展的独特未来机会。
Angstrom-scale fluidic channels are ubiquitous in nature and play an important role in regulating cellular traffic, signaling, and responding to stimuli. Synthetic angstrom channels are now a reality with the emergence of several cutting-edge bottom-up and top-down fabrication methods. In particular, the use of atomically thin 2D materials and nanotubes as components to build fluidic conduits has pushed the limits of fabrication to the angstrom scale. Here, we provide an overview of recent developments in the fabrication methods for nano- and angstrofluidic channels while categorizing them on the basis of dimensionality (0D pores, 1D tubes, 2D slits), along with the latest advances in measurement techniques. We discuss the ion transport governed by various stimuli in these channels and the variation of ionic mobility, streaming power, and osmotic power with pore size across all the dimensionalities. Finally, we highlight unique future opportunities in the development of smart ionic devices.