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Photo-switchable two-dimensional nanofluidic ionic diodes.

ABSTRACT: The bottom-up assembly of ion-channel-mimetic nanofluidic devices and materials with two-dimensional (2D) nano-building blocks paves a straightforward way towards the real-world applications of the novel transport phenomena on a nano- or sub-nanoscale. One immediate challenge is to provide the 2D nanofluidic systems with adaptive responsibilities and asymmetric ion transport characteristics. Herein, we introduce a facile and general strategy to provide a graphene-oxide-based 2D nanofluidic system with photo-switchable ionic current rectification (ICR). The degree of ICR can be prominently enhanced upon UV irradiation and it can be perfectly retrieved under irradiation with visible light. A maximum ICR ratio of about 48 was achieved. The smart and functional nanofluidic devices have applications in energy conversion, chemical sensing, water treatment, etc.

SUBMITTER: Wang L

PROVIDER: S-EPMC5472846 | biostudies-other | 2017 Jun

REPOSITORIES: biostudies-other

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Photo-switchable two-dimensional nanofluidic ionic diodes.

Wang Lili L Feng Yaping Y Zhou Yi Y Jia Meijuan M Wang Guojie G Guo Wei W Jiang Lei L

Chemical science 20170405 6

The bottom-up assembly of ion-channel-mimetic nanofluidic devices and materials with two-dimensional (2D) nano-building blocks paves a straightforward way towards the real-world applications of the novel transport phenomena on a nano- or sub-nanoscale. One immediate challenge is to provide the 2D nanofluidic systems with adaptive responsibilities and asymmetric ion transport characteristics. Herein, we introduce a facile and general strategy to provide a graphene-oxide-based 2D nanofluidic syste ...[more]

PMID: 28660062

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