Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Potentiometry: Types of Electrodes01:19

Potentiometry: Types of Electrodes

2.5K
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...
2.5K
Electrodes: Overview01:17

Electrodes: Overview

3.0K
 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...
3.0K
Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

2.2K
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...
2.2K
Potentiometry: Overview01:06

Potentiometry: Overview

5.4K
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...
5.4K
Standard Electrode Potentials03:02

Standard Electrode Potentials

51.8K
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...
51.8K
Instrumentation Amplifier01:25

Instrumentation Amplifier

1.2K
An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
1.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Rack1 mediates tyrosine phosphorylation of Anxa2 by Src and promotes invasion and metastasis in drug-resistant breast cancer cells.

Breast cancer research : BCR·2019
Same author

Rack1 mediates Src binding to drug transporter P-glycoprotein and modulates its activity through regulating Caveolin-1 phosphorylation in breast cancer cells.

Cell death & disease·2019
Same author

IL-37 promotes cell apoptosis in cervical cancer involving Bim upregulation.

OncoTargets and therapy·2019
Same author

Dynamic Parameter Identification for a Manipulator with Joint Torque Sensors Based on an Improved Experimental Design.

Sensors (Basel, Switzerland)·2019
Same author

Juglone eliminates MDSCs accumulation and enhances antitumor immunity.

International immunopharmacology·2019
Same author

Visceral adipogenesis inhibited by Pref-1 is associated with peritoneal angiogenesis.

Nephrology (Carlton, Vic.)·2019

Related Experiment Video

Updated: Mar 21, 2026

Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment
10:03

Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment

Published on: July 22, 2022

5.2K

Skin-Potential Variation Insensitive Dry Electrodes for ECG Recording.

Weihua Pei, He Zhang, Yijun Wang

    IEEE Transactions on Bio-Medical Engineering
    |May 11, 2016
    PubMed
    Summary

    A novel dry electrode design eliminates skin-potential variation (SPV) interference for clearer biopotential recordings. This innovation enhances wearable technology by reducing motion artifacts.

    More Related Videos

    A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes
    09:27

    A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes

    Published on: March 3, 2014

    14.0K
    Open-source Toolkit: Benchtop Carbon Fiber Microelectrode Array for Nerve Recording
    07:50

    Open-source Toolkit: Benchtop Carbon Fiber Microelectrode Array for Nerve Recording

    Published on: October 29, 2021

    3.4K

    Related Experiment Videos

    Last Updated: Mar 21, 2026

    Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment
    10:03

    Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment

    Published on: July 22, 2022

    5.2K
    A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes
    09:27

    A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes

    Published on: March 3, 2014

    14.0K
    Open-source Toolkit: Benchtop Carbon Fiber Microelectrode Array for Nerve Recording
    07:50

    Open-source Toolkit: Benchtop Carbon Fiber Microelectrode Array for Nerve Recording

    Published on: October 29, 2021

    3.4K

    Area of Science:

    • Biomedical Engineering
    • Wearable Technology
    • Biosignal Processing

    Background:

    • Skin-potential variation (SPV) is a significant source of noise in biopotential recordings.
    • Existing dry electrodes are susceptible to motion artifacts caused by SPV.
    • Accurate biosignal acquisition is crucial for effective wearable health monitoring.

    Purpose of the Study:

    • To develop a dry electrode that is insensitive to skin-potential variation (SPV).
    • To mitigate motion artifacts in biopotential recordings caused by SPV.
    • To improve the reliability of biosignal acquisition in dynamic environments.

    Main Methods:

    • A Parylene membrane was coated onto the root of microneedles in a conventional microneedle array electrode.
    • The coating insulates the electrode from the stratum corneum, exposing only the needle tips.
    • This design ensures direct contact with the stratum germinativum layer.

    Main Results:

    • The proposed electrode effectively prevents skin potential from coupling into the recording system.
    • Biopotential recordings are no longer influenced by SPV during dynamic states.
    • The electrode demonstrates robustness against motion noise originating from SPV.

    Conclusions:

    • The developed microneedle-based dry electrode offers inherent insensitivity to SPV.
    • This technology is highly suitable for wearable devices requiring strong anti-motion interference capabilities.
    • The innovation paves the way for more reliable biosignal monitoring in real-world applications.