A neuromorphic device mimicking synaptic plasticity under different body fluid K+homeostasis for artificial reflex path construction and pattern recognition

Lu Yang ¹Yao Ni ¹Chengpeng Jiang ¹Lu Liu ¹Song Zhang ¹Jiaqi Liu ¹Lin Sun ¹Wentao Xu¹

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作者信息

1. Institute of Photoelectronic Thin Film Devices and Technology,Key Laboratory of Optoelectronic Thin Film Devices and Technology of Tianjin,Engineering Research Center of Thin Film Photoelectronic Technology,Ministry of Education,Nankai University,Tianjin 300350,China;Shenzhen Research Institute of Nankai University,Shenzhen 518000,China
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Abstract

The ionic environment of body fluids influences nervous functions for maintaining homeostasis in organisms and ensures normal perceptual abilities and reflex activities.Neural reflex activities,such as limb movements,are closely associated with potassium ions(K+).In this study,we developed artificial synaptic devices based on ion concentration-adjustable gels for emulating various synaptic plasticities under different K+ concentrations in body fluids.In addition to performing essential synaptic functions,potential applications in information pro-cessing and associative learning using short-and long-term plasticity realized using ion concentration-adjustable gels are presented.Artificial synaptic devices can be used for constructing an artificial neural pathway that con-trols artificial muscle reflex activities and can be used for image pattern recognition.All tests show a strong relationship with ion homeostasis.These devices could be applied to neuromorphic robots and human-machine interfaces.

Key words

Nervous regulation/Artificial synaptic device/Ion gel/Ion homeostasis/Artificial reflex pathway

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基金项目

国家杰出青年科学基金(T2125005)

Tianjin Science Foundation for Distinguished Young Scholars(19JCJQJC61000)

深圳市科技计划(JCYJ20210324121002008)

出版年

2024

自然科学基础研究(英文)

CSTPCD

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参考文献量45

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