Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Mechanism of Breathing I: Inspiration01:30

Mechanism of Breathing I: Inspiration

Introduction to Inspiration: The Respiratory System in Action
The respiratory system, an essential network for breathing, comprises the conducting and respiratory zones, each playing a crucial role in the overall process of respiration. Let us explore the detailed mechanism of inspiration, or inhalation, which is the first phase of the respiratory cycle.
Pathway of Air during Inspiration
During inspiration, air enters our body through the nose or mouth and moves through the conducting zone,...
Physiological Control of Respiration01:23

Physiological Control of Respiration

Introduction
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
Dose-Response Relationship: Selectivity and Specificity01:25

Dose-Response Relationship: Selectivity and Specificity

Drugs exert their therapeutic effects by interacting with receptors, enzymes, or ion channels that are present throughout the human body. The strength and duration of the interaction between a drug and its target receptor are characterized by the selectivity and specificity of the drug. Selectivity refers to a drug's strong preference for its intended target over other targets. For instance, isoprenaline, a non-selective β-adrenergic agonist, interacts with both β1- and β2-adrenergic receptors...
Neural Control of Respiration01:18

Neural Control of Respiration

The neural regulation of respiration is a meticulously coordinated process primarily controlled by the respiratory centers located within the brainstem. These centers, composed of specialized neurons, transmit nerve impulses that control the contraction and relaxation of our respiratory muscles.
Respiratory Centers in the Brainstem
Two primary areas comprise the respiratory center: the medullary respiratory center in the medulla oblongata and the pontine respiratory group in the pons. The...
Other Factors Affecting Respiration Centers01:17

Other Factors Affecting Respiration Centers

Breathing is primarily an involuntary activity regulated by the brainstem respiratory centers. However, it can also be consciously controlled, allowing us to hold our breath or take deeper breaths when needed. This voluntary control is facilitated by the cerebral motor cortex, which bypasses the medullary centers to stimulate the respiratory muscles directly.
However, the ability to hold one's breath voluntarily is not limitless. When the CO2 concentration in the blood reaches a critical level,...
Physiology of Respiration II: Neurogenic Control of Respiration01:22

Physiology of Respiration II: Neurogenic Control of Respiration

The neurogenic control of respiration coordinates various neural networks and pathways to regulate breathing rate and depth, meeting the body's oxygen and carbon dioxide exchange requirements. This system adapts to physiological and environmental conditions, ensuring optimal breathing patterns.
Central Control
The brainstem is the primary site of central control, hosting respiratory centers:

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Tuning Selectivity of Electrochemical Sensors With Polymer Coatings.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Active nitrogen mediated selective ruthenium migration on ceria for high pressure ammonia decomposition.

Nature communications·2026
Same author

Single Cu Atom Sites on Co<sub>3</sub>O<sub>4</sub> Activate Interfacial Oxygen for Enhanced Reactivity and Selective Gas Sensing at Low Temperature.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Polymorph-Specific Electronic Transduction in WO<sub>3</sub> during Molecular Sensing.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Air Pollution Monitoring with Nanoscaled Materials in Chemoresistive Gas Sensors.

ACS applied materials & interfaces·2026
Same author

Sub-ppm Methane Sensing by Spark-Ablation-Synthesized Nano-SnO<sub>2</sub>.

ACS sensors·2026

相关实验视频

Updated: Jun 17, 2026

Fast and Accurate Exhaled Breath Ammonia Measurement
06:27

Fast and Accurate Exhaled Breath Ammonia Measurement

Published on: June 11, 2014

13.5K

动态呼吸里蒙感应在高选择性.

Ines C Weber1,2, Dina N Oosthuizen1, Rawan W Mohammad1

  • 1Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland.

ACS sensors
|June 28, 2023
PubMed
概括

一个新的呼吸测试仪检测了肝脏疾病的生物标志物 - - 利蒙,提供了早期的,非侵入性的诊断. 这种低成本的设备可以监测出口气中的利蒙含量,用于例行肝脏健康查.

关键词:
在PTR-ToF-MS中使用.呼吸分析 呼吸分析诊断 诊断 诊断 诊断 诊断气体传感器 气体传感器肝脏疾病是一种肝脏疾病.移动健康的移动健康纳米技术是纳米技术.

更多相关视频

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
08:23

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry

Published on: March 9, 2018

9.0K
Breath Collection from Children for Disease Biomarker Discovery
06:09

Breath Collection from Children for Disease Biomarker Discovery

Published on: February 14, 2019

7.0K

相关实验视频

Last Updated: Jun 17, 2026

Fast and Accurate Exhaled Breath Ammonia Measurement
06:27

Fast and Accurate Exhaled Breath Ammonia Measurement

Published on: June 11, 2014

13.5K
Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
08:23

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry

Published on: March 9, 2018

9.0K
Breath Collection from Children for Disease Biomarker Discovery
06:09

Breath Collection from Children for Disease Biomarker Discovery

Published on: February 14, 2019

7.0K

科学领域:

  • 生物医学工程 生物医学工程
  • 分析化学 分析化学
  • 医学诊断 医学诊断 医学诊断

背景情况:

  • 肝脏疾病每年导致超过200万人的死亡,通常是由于诊断迟到.
  • 目前的查方法不足以进行早期检测.
  • 呼吸里蒙是一种有前途的,非侵入性肝功能障碍生物标志物,表明细胞染色体P450酶缺乏.

研究的目的:

  • 开发一个紧的,低成本的探测器,用于选择性和动态的呼吸传感.
  • 通过呼吸分析实现实时,非侵入性监测肝功能.

主要方法:

  • 一个使用Si/WO3纳米粒子的化学阻抗传感器.
  • 在室温下使用Tenax分离柱预先选呼吸样本.
  • 在气体混合物中检测具有高选择性和对湿度的强度的烯.

主要成果:

  • 选择性检测烯到20 parts per billion,即使有其他挥发性有机化合物的高度.
  • 在广泛的相对湿度范围 (10-90%) 中具有强大的性能.
  • 成功地实时监测了每个人吸入后的呼吸里蒙烯动态,与质谱学相关性很好 (R2 = 0.98).

结论:

  • 开发的检测器显示出对肝脏健康的简单,非侵入性和常规监测的巨大潜力.
  • 这项技术可以通过分析呼出的呼吸里蒙水平来促进肝功能障碍的早期诊断.
  • 该设备为广泛的查和疾病管理提供了具有成本效益的替代方案.