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基于记忆器的人工嗅觉系统可以模拟器官损伤和空气净化中的功能
Lu Wang1, Wenhao Li1, Lijun Wan1
1School of Electronic Engineering, Heilongjiang University, Harbin 150080, China.
ACS sensors
|December 7, 2023
概括
这项研究引入了人工嗅觉系统,使用WO3-TiO2@Ag NPs气体传感器和基于pectin的memristor. 该系统检测乙醇蒸汽,存储信息,并激活气体净化风扇,模仿人类的保护反应.
科学领域:
- 材料科学 材料科学 材料科学
- 传感器技术 传感器技术
- 人工智能的人工智能
背景情况:
- 人工嗅觉系统对于机器人和人机交互至关重要.
- 模拟人类嗅觉系统的识别,记忆和保护功能是一项挑战.
研究的目的:
- 开发一种能够感知,储存和响应危险气体的人工嗅觉系统.
- 模仿人类对危险气体暴露的保护措施.
主要方法:
- 使用sol-gel方法制造一个WO3-TiO2@Ag NPs (银纳米粒子) 气体传感器.
- 通过旋转涂层和真空蒸发来制备一个Al/pectin:AgNP/ITO记忆器.
- 气体传感器和记忆器与现场可编程门阵列 (FPGA) 控制的集成.
主要成果:
- WO3-TiO2@Ag NPs气体传感器通过阻力变化成功检测和识别了乙醇蒸汽.
- 基于pectin的memristor通过在接收来自传感器的信号时切换电阻状态来存储气体信息.
- 记忆器激活触发了气体净化风扇,降低了暴露风险.
结论:
- 开发的人工嗅觉系统展示了人工智能和人机交互的有希望的方法.
- 这个系统有效地模拟了人类嗅觉系统的各个方面,包括感知,记忆和保护行动.
- 气体传感器和记忆器的集成为智能气体管理和安全系统提供了一个新的策略.
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...
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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...
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