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

Processes at Electrodes01:30

Processes at Electrodes

48
The electrode interacts with ions in the electrolyte solution at its interface. The rate of oxidation and reduction depends on the speed at which electrons can transfer through this interface. As ions attach to or leave the electrode surface, the electrode acquires a charge, and an electrical potential forms across the interface, making the process more difficult to reach equilibrium. The charge on the electrode affects the local ion concentrations in the solution, though thermal motion...
48
The Electrical Double Layer01:30

The Electrical Double Layer

116
In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
116
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
Electrochemical Systems01:24

Electrochemical Systems

57
Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution,...
57
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
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

You might also read

Related Articles

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

Sort by
Same author

Reconfiguration of organic electrochemical transistors for high-accuracy potentiometric sensing.

Nature communications·2024
Same author

A compressomyograph train of four monitoring device.

Medical engineering & physics·2024
Same author

Eutectogels as a Semisolid Electrolyte for Organic Electrochemical Transistors.

Chemistry of materials : a publication of the American Chemical Society·2024
Same author

Polarization of disk electrodes in high-conductivity electrolyte solutions.

The Journal of chemical physics·2024
Same author

SpyDirect: A Novel Biofunctionalization Method for High Stability and Longevity of Electronic Biosensors.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2023
Same author

A single n-type semiconducting polymer-based photo-electrochemical transistor.

Nature communications·2023

Related Experiment Video

Updated: Mar 22, 2026

Revealing Electromechanical Control of Tissue Homeostasis Using a Two-Layer Microfluidic Device
11:08

Revealing Electromechanical Control of Tissue Homeostasis Using a Two-Layer Microfluidic Device

Published on: September 19, 2025

1.3K

Electrothermal flow on electrodes arrays at physiological conductivities.

Anil Koklu1, Osman Tansel1, Hakan Oksuzoglu1

  • 1Department of Mechanical Engineering, Istanbul Technical University, Istanbul 34437, Turkey.

IET Nanobiotechnology
|April 15, 2016
PubMed
Summary

AC electrothermal (ET) flow in microfluidic devices is influenced by liquid conductivity and channel height. Understanding these factors is crucial for designing effective microfluidic systems, especially in biomicrofluidics.

More Related Videos

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
Bidirectional Electrical and Optoelectronic Interfaces in Healthy and Ischemic Ex Vivo Rat Hearts
08:33

Bidirectional Electrical and Optoelectronic Interfaces in Healthy and Ischemic Ex Vivo Rat Hearts

Published on: July 18, 2025

1.0K

Related Experiment Videos

Last Updated: Mar 22, 2026

Revealing Electromechanical Control of Tissue Homeostasis Using a Two-Layer Microfluidic Device
11:08

Revealing Electromechanical Control of Tissue Homeostasis Using a Two-Layer Microfluidic Device

Published on: September 19, 2025

1.3K
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
Bidirectional Electrical and Optoelectronic Interfaces in Healthy and Ischemic Ex Vivo Rat Hearts
08:33

Bidirectional Electrical and Optoelectronic Interfaces in Healthy and Ischemic Ex Vivo Rat Hearts

Published on: July 18, 2025

1.0K

Area of Science:

  • Physics
  • Fluid Mechanics
  • Electrical Engineering

Background:

  • AC electrothermal (ET) flow is a common phenomenon in microfluidic systems where electrical energy is dissipated in conductive media.
  • This flow significantly impacts the performance of microfluidic devices, particularly in biomicrofluidic applications.

Purpose of the Study:

  • To investigate the effects of liquid conductivity and microchannel height on AC electrothermal flow patterns.
  • To compare experimental observations with numerical simulations and validate existing AC ET flow theories.

Main Methods:

  • Experimental observation of ET flow in a microfluidic chamber with three electrode pairs.
  • Systematic variation of liquid conductivity and channel height.
  • Numerical simulations of AC ET flow.
  • Comparison of experimental data with theoretical models.

Main Results:

  • Liquid conductivity and channel height critically influence ET flow structure and magnitude.
  • A global ET flow emerges above a critical conductivity, while vortices form at electrode edges at lower conductivities.
  • ET flow is suppressed below a critical channel height at physiological conductivity (approximately 1.5 S/m).

Conclusions:

  • The study provides critical insights into the behavior of AC ET flow under varying conditions.
  • Experimental data offers a basis for refining current AC ET flow theories.
  • Findings are essential for the rational design of microfluidic systems involving power dissipation in conductive fluids.