A nanofluidic spiking synapse

• 成果类型: Article
• 署名作者: Xu, Yi-Tong; Yu, Si-Yuan; Li, Zheng; Kou, Bo-Han; Pang, Jian-Xiang; Zhao, Wei-Wei; Chen, Hong-Yuan; Xu, Jing-Juan
• 署名单位: Nanjing University
• 刊物名称: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• ISSN/ISSBN: 0027-12578
• DOI: 10.1073/pnas.2403143121
• 发表日期: 2024-07-09
• 关键词: plasticity; pedotpss; DYNAMICS; memory; size

摘要

Currently, the nanofluidic synapse can only perform basic neuromorphic pulse patterns. One immediate problem that needs to be addressed to further its capability of brain- like computing is the realization of a nanofluidic spiking device. Here, we report the use of a poly(3,4- ethylenedioxythiophene) polystyrene sulfonate membrane to achieve bionic ionic current- induced spiking. In addition to the simulation of various electrical pulse patterns, our synapse could produce transmembrane ionic current- induced spiking, which is highly analogous to biological action potentials with similar phases and excitability. Moreover, the spiking properties could be modulated by ions and neurochemicals. We expect that this work could contribute to biomimetic spiking computing in solution.