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  • Title: Tunable ionic transport control inside a bio-inspired constructive bi-channel nanofluidic device.
    Author: Zeng L, Yang Z, Zhang H, Hou X, Tian Y, Yang F, Zhou J, Li L, Jiang L.
    Journal: Small; 2014 Feb 26; 10(4):793-801. PubMed ID: 24031024.
    Abstract:
    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.
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