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<p>Memristors—electronic and ionic elements with memory—have transformed neuromorphic computing, but their extension to practical fluidic systems has been limited to individual or few nanochannels. Here, we demonstrate a macroscale nanofluidic memristor, combining experiments and simulations in a scalable membrane platform. We reveal that asymmetric ion polarization dynamics in nanochannels under AC fields generate memristive response—a prediction confirmed experimentally in a scalable membrane architecture. The macroscopic design exhibits tunable ion transport with programmable on/off states, enabling spike-timing-dependent control of ion fluxes that mimics synaptic plasticity. Beyond neuromorphic behavior, we demonstrate ion-specific chemical sensing and programmable, on demand ion separation. This work bridges nanofluidic phenomena with macroscale functionality, opening avenues for large-area iontronic memory, adaptive filtration, bio-inspired computing, and selective ion detection.</p>

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Macroscale nanofluidic memristors enable iontronic memory, sensing and programmable separation

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月30日

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  • Javier Perez-Carvajal,
  • Banuprasad Theneyur Narayanaswamy,
  • Huan Xu,
  • Han Hu,
  • Zhi Xu,
  • Soufiane Abdelghani-Idrissi,
  • Alessandro Siria

摘要

Memristors—electronic and ionic elements with memory—have transformed neuromorphic computing, but their extension to practical fluidic systems has been limited to individual or few nanochannels. Here, we demonstrate a macroscale nanofluidic memristor, combining experiments and simulations in a scalable membrane platform. We reveal that asymmetric ion polarization dynamics in nanochannels under AC fields generate memristive response—a prediction confirmed experimentally in a scalable membrane architecture. The macroscopic design exhibits tunable ion transport with programmable on/off states, enabling spike-timing-dependent control of ion fluxes that mimics synaptic plasticity. Beyond neuromorphic behavior, we demonstrate ion-specific chemical sensing and programmable, on demand ion separation. This work bridges nanofluidic phenomena with macroscale functionality, opening avenues for large-area iontronic memory, adaptive filtration, bio-inspired computing, and selective ion detection.