一个基于突触晶体管的人工嗅觉系统,用于预防危险气体,以模拟器官损伤
Junshuai Dai1, Li Yuan1, Yunkuan Wei1
1Key Laboratory of Advanced Display and System Applications of Ministry of Education, Shanghai University, Shanghai 200072, P. R. China.
ACS sensors
|May 14, 2025
概括
这项研究介绍了一种新的人工嗅觉突触装置,它模仿人类的嗅觉记忆来检测和存储甲信息. 这种生物系统为甲暴露提供了早期警告,推进了人工智能和安全应用.
科学领域:
- 材料科学 材料科学 材料科学
- 人工智能的人工智能
- 传感器技术 传感器技术
背景情况:
- 传统的气体传感器缺乏内存功能,这阻碍了对甲等危险化学品的长期风险评估.
- 传统传感器的高工作温度限制了人工嗅觉系统与突触器件的集成.
研究的目的:
- 开发一种新的人工嗅觉突触装置,用于获取和记忆甲信息.
- 创建一个能够模拟甲暴露效应并提供早期警告的系统.
- 将气体传感与突触晶体管功能相结合,以增强人工嗅觉.
主要方法:
- 一个离子凝突触晶体管与一个银-氧化物 (Ag-ZnO) 气体传感器集成.
- Ag-ZnO传感器在室温下使用紫外线辐射检测出甲,将度转化为化学阻抗信号.
- 甲诱导的电阻变化调节了晶体管的门电压,影响了后突触电流,并使信息存储成为可能.
主要成果:
- 该设备在室温下成功获得并记住甲信息.
- 该系统模拟了甲暴露的不良影响,并提供了早期警告.
- 对 postsynaptic 电流的支持向量机 (SVM) 分析使得能够准确识别不同的甲度.
结论:
- 拟议的生物嗅觉系统集成了气体感应和突触记忆功能.
- 这种新型设备为开发先进的人工智能和危险预警系统提供了一个有前途的战略.
- 室温操作和内存能力解决了传统气体传感器的局限性.
相关概念视频
01:25Olfaction
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
The olfactory receptors are embedded in the cilia of the...
01:03Olfactory Receptors: Location and Structure
The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
01:20Physiology of Smell and Olfactory Pathway
Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
The olfactory...