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相关概念视频

Olfaction01:25

Olfaction

40.5K
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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Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

10.5K
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...
10.5K
Physiology of Smell and Olfactory Pathway01:20

Physiology of Smell and Olfactory Pathway

13.1K
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...
13.1K

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Updated: May 2, 2026

A Lateralized Odor Learning Model in Neonatal Rats for Dissecting Neural Circuitry Underpinning Memory Formation
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A Lateralized Odor Learning Model in Neonatal Rats for Dissecting Neural Circuitry Underpinning Memory Formation

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基于导电金属有机框架的人工嗅觉记忆系统.

Xiaomeng Yin1,2, Hao Zhang3, Xuezhi Qiao1,2

  • 1Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, P. R. China.

Nature communications
|September 27, 2024
PubMed
概括
此摘要是机器生成的。

研究人员使用导电金属有机框架 (Ce-HHTP) 开发了一种人工嗅觉记忆系统,模仿人类的嗅觉记忆. 这个系统可以区分不同的气味,为先进的生物体应用铺平了道路.

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Synthesis and Characterization of Functionalized Metal-organic Frameworks
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Olfactory Context Dependent Memory: Direct Presentation of Odorants
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Olfactory Context Dependent Memory: Direct Presentation of Odorants

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相关实验视频

Last Updated: May 2, 2026

A Lateralized Odor Learning Model in Neonatal Rats for Dissecting Neural Circuitry Underpinning Memory Formation
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科学领域:

  • 材料科学 材料科学 材料科学
  • 化学传感器 化学传感器
  • 生物模拟系统 生物模拟系统

背景情况:

  • 人类的嗅觉系统创建持久的感官记忆,影响决策.
  • 当前的电子鼻子缺乏形成持久的气味记忆的能力.
  • 现有的传感器通常只能测量气味剂的瞬间度.

研究的目的:

  • 开发一种具有集成感应和记忆能力的人工嗅觉系统.
  • 创建一个能够为不同气味产生独特的短期和长期记忆的系统.
  • 探索这个系统在现实世界应用中的潜力,如环境监测和健康管理.

主要方法:

  • 利用导电金属有机框架 (Ce-HHTP) 进行传感和记忆.
  • 通过实验和理论计算,研究了Ce-HHTP与客分子 (酒精,) 之间的相互作用.
  • 将系统集成到无人飞机和便携式检测设备中.

主要成果:

  • Ce-HHTP系统显示了对酒精和化物的短期和长期记忆反应.
  • 不同的记忆归因于Ce-HHTP与客分子中的氧原子之间的特定相互作用.
  • 在使用无人机的已建立地区,成功实现了感官记忆的实施.

结论:

  • 成功创建了一个具有集成感应和记忆功能的人工嗅觉记忆系统.
  • 该系统表现出生物特质,模仿人类嗅觉记忆,具有独特的感觉记忆.
  • 该技术具有通过可穿戴设备进行场外污染监测和个性化健康管理的巨大潜力.