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Tunable Ionic Transport Control inside a Bio‐Inspired Constructive Bi‐Channel Nanofluidic Device
Author(s) -
Zeng Lu,
Yang Zhe,
Zhang Huacheng,
Hou Xu,
Tian Ye,
Yang Fu,
Zhou Jianjun,
Li Lin,
Jiang Lei
Publication year - 2014
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201301647
Subject(s) - nanodevice , nanotechnology , ionic bonding , constructive , materials science , rectification , channel (broadcasting) , ion , computer science , chemistry , engineering , process (computing) , electrical engineering , voltage , telecommunications , organic chemistry , operating system
Inspired by the cooperative functions of the asymmetrical ion channels in living cells, a constructive bi‐channel nanofluidic device that demonstrates the enhanced capability of multiple regulations over both the ion flux amount and the ionic rectification property is prepared. In this bi‐channel system, the construction routes of the two asymmetric conical nanochannels provide a way to efficiently transform the nanodevice into four different functional working modes. In addition, the variation of external pH conditions leads the nanodevice to the uncharged, semi‐charged and charged states, where the multistory ionic regulating function property is enhanced by the charged degree. This intelligent integration of the single functional nanochannels demonstrates a promising future for building more functional multi‐channel integrated nanodevices as well as expands the functionalities of the bio‐inspired smart nanochannels.