Yang Lu, Ni Yao, Jiang Chengpeng, Liu Lu, Zhang Song, Liu Jiaqi, Sun Lin, Xu Wentao
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.
Fundam Res. 2022 Apr 29;4(2):353-361. doi: 10.1016/j.fmre.2022.03.024. eCollection 2024 Mar.
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 processing 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 controls 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.
体液的离子环境影响神经功能，以维持生物体的内稳态，并确保正常的感知能力和反射活动。神经反射活动，如肢体运动，与钾离子（K）密切相关。在本研究中，我们基于离子浓度可调凝胶开发了人工突触装置，用于模拟体液中不同钾浓度下的各种突触可塑性。除了执行基本的突触功能外，还介绍了使用离子浓度可调凝胶实现的短期和长期可塑性在信息处理和联想学习中的潜在应用。人工突触装置可用于构建控制人工肌肉反射活动的人工神经通路，并可用于图像模式识别。所有测试均显示与离子稳态有密切关系。这些装置可应用于神经形态机器人和人机接口。
