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相关概念视频

Potentiometry: Types of Electrodes01:19

Potentiometry: Types of Electrodes

562
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...
562
Amperometry: Overview01:10

Amperometry: Overview

479
Amperometry is a technique commonly used to measure the concentration of specific analytes in a solution by monitoring the electric current generated during an electrochemical reaction. It involves applying a constant potential between a working electrode and a reference electrode to measure the resulting current, which is proportional to the concentration of the analyte. The Clark oxygen electrode operates based on this principle of amperometry. It consists of a cathode and an anode enclosed...
479
Electrodes: Overview01:17

Electrodes: Overview

1.3K
 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...
1.3K
Electrodeposition01:08

Electrodeposition

616
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
616

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相关实验视频

Updated: Jun 16, 2025

Anaerobic Protein Purification and Kinetic Analysis via Oxygen Electrode for Studying DesB Dioxygenase Activity and Inhibition
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使用普鲁士蓝色用于小型氧气传感器的无污染参考电极.

Akiko Yoshida1,2, Kritin Pirabul2, Shunsuke Fujii3

  • 1Techno Medica Co., Ltd., Yokohama, Kanagawa 224-0041, Japan.

ACS applied materials & interfaces
|August 20, 2024
PubMed
概括

这项研究引入了一种新的基于普鲁士蓝色的参考电极用于小型氧气传感器,在临床检测设备中比传统的银/银化物电极提供更高的稳定性.

关键词:
普鲁士的蓝色是普鲁士的蓝色半孔碳是中孔碳的一种.参考电极的参考电极是什么屏幕打印设备的屏幕打印设备.小的氧气传感器

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科学领域:

  • 电化学 电化学 电化学
  • 材料科学 材料科学 材料科学
  • 生物医学工程 生物医学工程

背景情况:

  • 护理点检测 (POCT) 设备对于有效的患者护理至关重要.
  • 在POCT中常见的电化学传感,如血氧传感器,通常依赖Ag/AgCl参考电极.
  • Ag/AgCl 电极可以用银离子污染工作电极,导致设备降解.

研究的目的:

  • 为小型电化学POCT设备开发稳定可靠的参考电极.
  • 在POCT应用中解决传统Ag/AgCl参考电极的局限性.

主要方法:

  • 使用嵌入普鲁士蓝色 (PB) 的石墨烯涂层多孔体球 (G/PSS) 制造了一种新型参考电极,称为PB/G/PSS.
  • 在导电性G/PSS矩阵内分散PB以确保电解质接触.
  • 用于POCT设备制造的PB/G/PSS电极的丝网打印.

主要成果:

  • 在31天内,PB/G/PSS电极在30mV范围内表现出稳定的开放电路潜力.
  • 使用PB/G/PSS电极的氧气传感器在几天内显示稳定运行.
  • 带有Ag/AgCl电极的传感器在一天内出现了快速恶化.

结论:

  • 与Ag/AgCl电极相比,PB/G/PSS参考电极提供了显著改善的稳定性.
  • 这种新型电极是小型基于电化学的POCT设备的有希望的替代品.
  • 可印,稳定的PB/G/PSS电极有助于开发下一代POCT.