Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 117, Issue 29, Pages 16743-16748Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.2005937117
Keywords
biomimetic structures | nanofluidics | ion transportation | AC system | information transmission
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Funding
- National Key R&D Program of China [2017YFA0206904, 2017YFA0206900]
- National Natural Science Foundation of China [21625303, 21905287, 51673206, 21988102]
- Beijing Natural Science Foundation [2194088]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA2010213]
- Key Research Program of the Chinese Academy of Sciences [QYZDY-SSW-SLH014]
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Mammalian nervous systems, as natural ionic circuitries, stand out in environmental perception and sophisticated information transmission, relying on protein ionic channels and additional necessary structures. Prosperously emerged ionic regulated biomimetic nanochannels exhibit great potentialities in various application scenarios, especially signal transduction. Most reported direct current systems possess deficiencies in informational density and variability, which are superiorities of alternating current (AC) systems and necessities in bioinspired nervous signal transmission. Here, inspired by myelinated saltatory conduction, alternating electrostatic potential controlled nanofluidics are constructed with a noncontact application pattern and MXene nanosheets. Under time-variant external stimuli, ions confined in the interlaminar space obtain the capability of carriers for the AC ionic circuit. The transmitted information is accessible from typical sine to a frequency-modulated binary signal. This work demonstrates the potentiality of the bioinspired nervous signal transmission between electronics and ionic nanofluidics, which might push one step forward to the avenue of AC ionics.
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