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

Interfacial Electrochemical Methods: Overview01:06

Interfacial Electrochemical Methods: Overview

362
Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
362
Electrophysiology of Normal Cardiac Rhythm01:19

Electrophysiology of Normal Cardiac Rhythm

6.7K
The normal cardiac rhythm is a synchronized electrical activity that facilitates the regular and coordinated contraction of the heart muscle. This process is essential for efficient blood circulation throughout the body. The fundamental elements involved in establishing and maintaining this rhythm include the unique electrical properties of cardiac muscle cells, the sinoatrial (SA) node's pacemaker function, the specialized conducting system, and the ionic mechanisms underlying each phase...
6.7K
Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

751
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...
751
Electromagnetic Waves01:30

Electromagnetic Waves

9.2K
James Clerk Maxwell formulated a single theory combining all the electric and magnetic effects scientists knew during that time, calling the phenomena his theory predicted “Electromagnetic waves”. He brought together all the work that had been done by brilliant physicists such as Oersted, Coulomb, Gauss, and Faraday and added his own insights to develop the overarching theory of electromagnetism. Maxwell’s equations, combined with the Lorentz force law, encompass all the laws...
9.2K
Cardiac Action Potential01:30

Cardiac Action Potential

2.3K
Cardiac action potentials are essential for proper heart function, enabling the rhythmic contractions needed for adequate blood circulation. Nodal cells and Purkinje fibers, specialized for electrical conduction, generate these action potentials.
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
2.3K
Standing Electromagnetic Waves01:15

Standing Electromagnetic Waves

1.7K
Electromagnetic waves can be reflected; the surface of a conductor or a dielectric can act as a reflector. As electric and magnetic fields obey the superposition principle, so do electromagnetic waves. The superposition of an incident wave and a reflected electromagnetic wave produces a standing wave analogous to the standing waves created on a stretched string.
Suppose a sheet of a perfect conductor is placed in the yz-plane, and a linearly polarized electromagnetic wave traveling in the...
1.7K

You might also read

Related Articles

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

Sort by
Same author

Dual-mode pH-programmable enzymatic hydrogel system for on-demand glucose generation.

Soft matter·2026
Same author

Artificial allosteric protein switches with machine-learning-designed receptors.

Nature biotechnology·2026
Same author

Bioinspired silver nanoparticles from <i>Artemisia lerchiana</i> as durable electrodes for next-generation supercapacitors.

Physical chemistry chemical physics : PCCP·2026
Same author

High-Capacitance Gold Nanoparticles from <i>Rhus coriaria</i>: Green Synthesis, Characterization and Electrochemical Evaluation for Supercapacitor Technologies.

Micromachines·2026
Same author

A thermosensitive α-amino acid hydrogel layer deposited on an electrode surface: Actuator and sensor performance.

Talanta·2025
Same author

Lanthanide-Controlled Protein Switches: Development and In Vitro and In Vivo Applications.

Angewandte Chemie (International ed. in English)·2025

Related Experiment Video

Updated: Aug 30, 2025

AC Electrokinetic Phenomena Generated by Microelectrode Structures
20:38

AC Electrokinetic Phenomena Generated by Microelectrode Structures

Published on: July 28, 2008

11.6K

Multiple pH waves generated electrochemically and propagated from an electrode surface.

Ilya Sterin1, Anna Tverdokhlebova1, Evgeny Katz1

  • 1Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY, 13699-5810, USA. osmutok@clarkson.edu.

Chemical Communications (Cambridge, England)
|August 31, 2022
PubMed
Summary
This summary is machine-generated.

Electrochemical reactions create localized pH changes, forming distinct layers of acidic and basic solutions. These pH waves were visualized using pH-dependent dyes and fluorescence microscopy.

More Related Videos

Neural Activity Propagation in an Unfolded Hippocampal Preparation with a Penetrating Micro-electrode Array
09:48

Neural Activity Propagation in an Unfolded Hippocampal Preparation with a Penetrating Micro-electrode Array

Published on: March 27, 2015

8.5K
External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures
08:32

External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures

Published on: May 7, 2017

13.5K

Related Experiment Videos

Last Updated: Aug 30, 2025

AC Electrokinetic Phenomena Generated by Microelectrode Structures
20:38

AC Electrokinetic Phenomena Generated by Microelectrode Structures

Published on: July 28, 2008

11.6K
Neural Activity Propagation in an Unfolded Hippocampal Preparation with a Penetrating Micro-electrode Array
09:48

Neural Activity Propagation in an Unfolded Hippocampal Preparation with a Penetrating Micro-electrode Array

Published on: March 27, 2015

8.5K
External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures
08:32

External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures

Published on: May 7, 2017

13.5K

Area of Science:

  • Electrochemistry
  • Analytical Chemistry
  • Materials Science

Background:

  • Electrochemical reactions can alter the local chemical environment.
  • Understanding spatial pH changes is crucial for various chemical and biological processes.

Purpose of the Study:

  • To investigate the formation and visualization of localized pH changes induced by electrochemical reactions.
  • To demonstrate the creation of distinct pH layers through cyclic potential application.

Main Methods:

  • Electrochemical reactions were performed using cyclic application of reductive and oxidative potentials.
  • pH changes were monitored and visualized using pH-dependent fluorescent dyes.
  • A fluorescence confocal microscope was employed for high-resolution imaging of pH layers.

Main Results:

  • Electrochemical processes successfully generated localized pH variations.
  • Distinct solution layers with measurable acidic and basic pH values were formed.
  • The formation of pH waves as layered structures was confirmed through fluorescence microscopy.

Conclusions:

  • Cyclic electrochemical potentials can controllably create stratified pH environments.
  • Fluorescence microscopy provides effective visualization of electrochemical pH gradients.
  • This technique offers a novel method for studying localized pH phenomena.