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

Voltammetric Techniques: Pulse Voltammetry01:17

Voltammetric Techniques: Pulse Voltammetry

1.3K
Differential-pulse voltammetry (DPV) is a type of voltammetry that involves applying a series of voltage pulses to an electrochemical cell while measuring the resulting current. In DPV, the differential pulse or small potential pulses are superimposed on a linear potential sweep. The magnitude of these pulses is typically small, often in the millivolt range. Each voltage pulse lasts a short duration, usually in the order of a few milliseconds, and is applied at regular intervals along the...
1.3K
Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

1.6K
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
1.6K
Potentiometry: Overview01:06

Potentiometry: Overview

4.2K
Potentiometry is an analytical technique that measures the potential difference between two electrodes in an electrochemical cell without drawing any significant current that could alter the solution's composition. This method employs an indicator electrode, which exchanges electrons with the analyte solution, and a reference electrode with a constant potential. Each electrode is immersed in a solution comprised of two half-cells. In a conventional setup, the reference electrode serves as...
4.2K
Standard Electrode Potentials03:02

Standard Electrode Potentials

49.8K
On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...
49.8K
Potentiometry: Types of Electrodes01:19

Potentiometry: Types of Electrodes

1.9K
Reference electrodes serve as a stable reference point for potentiometric measurements, while indicator and working electrodes react to variations in the composition of a solution.
The Standard Hydrogen Electrode (SHE) is a widely used reference electrode that maintains zero potential across all temperatures. However, its need for a continuous hydrogen gas supply renders it impractical for everyday use.
An alternative to SHE is the Saturated Calomel Electrode (SCE). This electrode features an...
1.9K
Electrodes: Overview01:17

Electrodes: Overview

2.6K
 Electrochemical measurements are conducted in an electrochemical cell composed of various components that control and measure the current and potential. One fundamental component is electrodes, conductive materials that enable electron transfer reactions at their surfaces.
There are two main types of electrodes in electrochemical cells. The first type, known as the working or indicator electrode, has a potential that is sensitive to the analyte's concentration and reacts to changes in...
2.6K

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

Assessing Dietary Patterns and Composition Among Adults With Cystic Fibrosis Taking Highly Effective Modulator Therapy.

Pediatric pulmonology·2026
Same author

Disease modification and progression in pre-chronic obstructive pulmonary disease: an official American Thoracic Society workshop report.

Annals of the American Thoracic Society·2026
Same author

<i>Aspergillus fumigatus</i> is influenced by mucus accumulation, airway inflammation and cystic fibrosis transmembrane conductance regulator function.

ERJ open research·2025
Same author

Association of Individual- and Neighborhood-Level Social Determinants of Health with Post-Hospitalization Acute Kidney Injury Care.

Clinical journal of the American Society of Nephrology : CJASN·2025
Same author

Hyaluronan Ameliorates Viral Pneumonia in Mice and Humans by Inhibiting Transcription Factor E2F1.

American journal of respiratory cell and molecular biology·2025
Same author

Lumacaftor inhibits channel activity of rescued F508del cystic fibrosis transmembrane conductance regulator.

American journal of physiology. Lung cellular and molecular physiology·2025
Same journal

Inhibition of thrombospondin-1 signaling prevents experimental bronchopulmonary dysplasia.

American journal of physiology. Lung cellular and molecular physiology·2026
Same journal

Early Dysanapsis in Experimental Bronchopulmonary Dysplasia: Implications for Lifelong Lung Disease.

American journal of physiology. Lung cellular and molecular physiology·2026
Same journal

Alternative splicing of Toll-like receptor pathway mRNAs in lung immune cells from patients with ARDS.

American journal of physiology. Lung cellular and molecular physiology·2026
Same journal

Hyperoxia and iron homeostasis in developing human airway smooth muscle.

American journal of physiology. Lung cellular and molecular physiology·2026
Same journal

The Role of Estrogen Receptors and House Dust Mite-Induced DNA Methylation in a Mouse Model.

American journal of physiology. Lung cellular and molecular physiology·2026
Same journal

Macrophage in the crosshairs: chemical inhalation and lung immune defense.

American journal of physiology. Lung cellular and molecular physiology·2026
查看所有相关文章

相关实验视频

Updated: Jan 13, 2026

Measurement of Bioelectric Current with a Vibrating Probe
07:28

Measurement of Bioelectric Current with a Vibrating Probe

Published on: January 4, 2011

14.5K

开发了一种新型的潜在差异探测器,并配备床边验证模拟器,用于测试潜在差异.

David O Otuya1,2, Kadambari Vijaykumar3,4, Justin Anderson3

  • 1Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA.

American journal of physiology. Lung cellular and molecular physiology
|January 9, 2026
PubMed
概括
此摘要是机器生成的。

一个新的探针系统提高了囊性纤维化跨膜导电性调节器 (CFTR) 功能测试的准确性. 这种新型设备使用光学连贯断层扫描来进行视觉指导,增强了CF患者的体潜能差异测量.

关键词:
在这里,我们可以看到AgarAgarAgar.卡洛梅尔电极 卡洛梅尔电极 是一种下呼吸道潜能差异下呼吸道潜能差异鼻腔潜在差异的不同银/银化物 银/银化物

更多相关视频

Standardized Measurement of Nasal Membrane Transepithelial Potential Difference NPD
09:47

Standardized Measurement of Nasal Membrane Transepithelial Potential Difference NPD

Published on: September 13, 2018

17.2K
Design to Implementation Study for Development and Patient Validation of Paper-Based Toehold Switch Diagnostics
10:42

Design to Implementation Study for Development and Patient Validation of Paper-Based Toehold Switch Diagnostics

Published on: June 17, 2022

3.4K

相关实验视频

Last Updated: Jan 13, 2026

Measurement of Bioelectric Current with a Vibrating Probe
07:28

Measurement of Bioelectric Current with a Vibrating Probe

Published on: January 4, 2011

14.5K
Standardized Measurement of Nasal Membrane Transepithelial Potential Difference NPD
09:47

Standardized Measurement of Nasal Membrane Transepithelial Potential Difference NPD

Published on: September 13, 2018

17.2K
Design to Implementation Study for Development and Patient Validation of Paper-Based Toehold Switch Diagnostics
10:42

Design to Implementation Study for Development and Patient Validation of Paper-Based Toehold Switch Diagnostics

Published on: June 17, 2022

3.4K

科学领域:

  • 肺部医学 肺部医学
  • 生物医学工程 生物医学工程
  • 医学诊断 医学诊断 医学诊断

背景情况:

  • 囊性纤维化 (CF) 由CFTR蛋白功能障碍引起,导致气道脱水和粘液问题.
  • 脑外皮潜能差异 (PD) 测量是CFTR活性的一个敏感指标.
  • 传统的PD测量方法繁且容易出现错误,特别是在内支气管应用中.

研究的目的:

  • 开发和验证一种新的,便携式探针系统,以提高CFTR功能测试的准确性和灵敏性.
  • 为了适应探头系统用于内支气管PD测量.
  • 在试点研究中为新设备建立原则证明.

主要方法:

  • 开发了一种新型的便携式探头,集成了气体去除和光学连贯性断层扫描 (OCT),用于视觉指导.
  • 使用床边电池模拟器进行探测器性能验证.
  • 进行了一项试点鼻腔PD研究,将CF受试者和非CF对照者 (n=10) 的新探针进行比较.

主要成果:

  • 这种新型探针系统证明了可行性,并使CF和非CF组在鼻腔PD测量中进行了歧视.
  • 德明回归显示出一致的线性关系,而索默斯的D表示中等等级顺序一致性.
  • 虽然布兰德-阿尔特曼分析表明协议有限,但结果为新设备提供了原则证明.

结论:

  • 这种新型探针系统为CFTR功能测试提供了更高的准确性和灵敏性,特别是对于内支气管PD测量.
  • 该设备通过外部电池模拟和试点临床研究来验证.
  • 需要在更大的队列中进行进一步的验证,以确认这种先进的诊断工具的临床实用性.