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相关概念视频

Olfaction01:25

Olfaction

45.2K
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...
45.2K
Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

9.6K
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...
9.6K
Physiology of Smell and Olfactory Pathway01:20

Physiology of Smell and Olfactory Pathway

9.5K
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...
9.5K
Hair Cells01:22

Hair Cells

41.4K
Hair cells are the sensory receptors of the auditory system—they transduce mechanical sound waves into electrical energy that the nervous system can understand. Hair cells are located in the organ of Corti within the cochlea of the inner ear, between the basilar and tectorial membranes. The actual sensory receptors are called inner hair cells. The outer hair cells serve other functions, such as sound amplification in the cochlea, and are not discussed in detail here.
41.4K

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相关实验视频

Updated: Sep 13, 2025

Whole Mount Labeling of Cilia in the Main Olfactory System of Mice
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Whole Mount Labeling of Cilia in the Main Olfactory System of Mice

Published on: December 27, 2014

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生物螺旋式传感器阵列的灵感来源于哺乳动物的嗅觉隙.

Zhiyuan Wu1, Fengchun Tian2, Yuzhu Nie1

  • 1School of Microelectronic and Communication Engineering, Chongqing University, 400044, Chongqing, China.

Talanta
|August 2, 2025
PubMed
概括
此摘要是机器生成的。

电子鼻子 (E-noses) 的新型螺旋式传感器阵列模仿了哺乳动物的嗅觉系统. 这种生物灵感设计提高了气味度的均性,并提高了气味识别精度,相比传统的平面阵列.

关键词:
电子鼻子 电子鼻子灵活的传感器传感器金属有机框架 (MOF) 是一种金属有机框架.嗅觉深处是一个深处.

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Multi-unit Recording Methods to Characterize Neural Activity in the Locust Schistocerca Americana Olfactory Circuits
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Imaging Odor-Evoked Activities in the Mouse Olfactory Bulb using Optical Reflectance and Autofluorescence Signals
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Imaging Odor-Evoked Activities in the Mouse Olfactory Bulb using Optical Reflectance and Autofluorescence Signals

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相关实验视频

Last Updated: Sep 13, 2025

Whole Mount Labeling of Cilia in the Main Olfactory System of Mice
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Whole Mount Labeling of Cilia in the Main Olfactory System of Mice

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Multi-unit Recording Methods to Characterize Neural Activity in the Locust Schistocerca Americana Olfactory Circuits
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Imaging Odor-Evoked Activities in the Mouse Olfactory Bulb using Optical Reflectance and Autofluorescence Signals
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科学领域:

  • 生物启发的工程是生物启发的.
  • 传感器技术 传感器技术
  • 化学传感器是一种化学传感器.

背景情况:

  • 传感器阵列的空间分布显著影响电子鼻子 (E-nose) 的性能.
  • 哺乳动物的嗅觉系统为改进的气味检测机制提供了一个模型.

研究的目的:

  • 开发一个灵活的,生物螺旋式传感器阵列,以提高E-nose的性能.
  • 研究螺旋结构对气味度分布和选择性的影响.
  • 为了比较螺旋阵列与平面设计的性能.

主要方法:

  • 制造具有生物螺旋结构的灵活传感器阵列.
  • 整合金属有机框架 (MOF) 材料和热调制以实现差异化气味选择性.
  • 计算流体动力学 (CFD) 模拟来分析气味度分布.
  • 使用14种不同的气味剂进行性能评估,评估精度,灵敏度,特异性,AUC和F1得分.

主要成果:

  • 生物螺旋结构有效地模仿嗅觉隙的整形效应,导致更均的气味度分布.
  • 与平面阵列相比,螺旋阵列在所有关键指标上表现出卓越的性能.
  • 螺旋阵列的峰值分类精度达到85.8 ± 4.7%,明显高于平面阵列的79.7 ± 6.5%.

结论:

  • 生物灵感螺旋式传感器阵列设计为提高E-nose性能提供了一个有前途的策略.
  • 这种方法提高了气味识别的精度和选择性.
  • 该研究强调了仿生技术在推进复杂化学传感应用的传感器技术方面的潜力.