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

Potential Due to a Magnetized Object01:24

Potential Due to a Magnetized Object

768
Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
The vector...
768
Bipolar Disorder01:30

Bipolar Disorder

646
Bipolar disorder is a chronic mental health condition marked by significant mood fluctuations, including episodes of mania and depression. Elevated energy levels, heightened mood or irritability, impulsive behavior, reduced sleep needs, rapid speech, racing thoughts, inflated self-esteem, and distractibility characterize mania. Individuals with bipolar disorder often alternate between depressive and manic states, with periods of emotional stability lasting an average of six months to a year.
646
Bipolar Junction Transistor01:22

Bipolar Junction Transistor

1.5K
Bipolar Junction Transistors (BJTs) are essential elements in electronic circuits, playing a crucial role in the functionality of amplifiers, memories, and microprocessors. These transistors can be designed as NPN or PNP based on their doping patterns. They consist of three layers: the emitter, base, and collector. The configuration of these layers and their respective doping levels—with N-type or P-type impurities—define the transistor's type and its operational...
1.5K
Kinematic Equations for Rotation01:30

Kinematic Equations for Rotation

769
In mechanics, when one observes a rigid body in rotational motion with constant angular acceleration, it is possible to establish equations for its rotational kinematics. This process resembles how linear kinematics are dealt with in simpler motion studies.
For instance, imagine a point A on a rigid body engaged in circular motion. The translational velocity of this particular point can be calculated by taking the time derivatives of the displacement equation, which essentially measures the...
769
Rotation of Asymmetric Top01:11

Rotation of Asymmetric Top

1.5K
By definition, a spherically symmetric body has the same moment of inertia about any axis passing through its center of mass. This situation changes if there is no spherical symmetry. Since most rigid bodies are not spherically symmetric, these require special treatment.
The relationship between the angular momentum of any rigid body and its angular velocity, both of which are vectors, involves the moment of inertia. The moment of inertia is a scalar quantity only for spherically symmetric...
1.5K
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

738
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
738

You might also read

Related Articles

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

Sort by
Same author

Imaging the reactivity of carbon nitride nanosheets by photoinduced cathodic electrochemiluminescence microscopy.

Chemical communications (Cambridge, England)·2026
Same author

Combining Underpotential Deposition and Soft-Template to Construct Ordered Mesoporous PdSb Nanocubes for Selective Ethylene Glycol Oxidation.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Combination of Luminescence Imaging and Amperometry to Analyze Molecular Fluxes Induced by Membrane Permeabilization of Single Giant Liposomes in Microfluidic Channels.

Analytical chemistry·2026
Same author

Triethanolamine Borate with a Rigid, Nonplanar Configuration as an Unexpectedly Highly Efficient Coreactant for Tris(2,2'-bipyridine)ruthenium(II) Electrochemiluminescence.

Analytical chemistry·2026
Same author

Rationalized Volcano Plot in Heterogeneous Electrochemiluminescence.

ACS electrochemistry·2026
Same author

Structural origin of hierarchical chirality in Pt@Au nanostructures with step-rich surfaces.

Nature communications·2026

Related Experiment Video

Updated: Jan 20, 2026

Author Spotlight: Insights into the Analysis of Human Interaction with 3D Virtual Objects
06:36

Author Spotlight: Insights into the Analysis of Human Interaction with 3D Virtual Objects

Published on: October 18, 2024

1.4K

Tracking Magnetic Rotating Objects by Bipolar Electrochemiluminescence.

Alice L Dauphin1, Abdelmounaim Akchach1, Silvia Voci1

  • 1University of Bordeaux , Bordeaux INP, ISM, UMR CNRS 5255, 33607 Pessac , France.

The Journal of Physical Chemistry Letters
|August 23, 2019
PubMed
Summary

Researchers developed a novel system using magnetic and electric fields to remotely control a gold-coated iron wire, enabling simultaneous rotation and light emission. This breakthrough enhances electrochemiluminescence (ECL) through motion-induced flow, paving the way for advanced imaging and sensing.

More Related Videos

Magnetically Induced Rotating Rayleigh-Taylor Instability
06:42

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

10.0K
Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms
07:31

Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms

Published on: February 8, 2019

7.2K

Related Experiment Videos

Last Updated: Jan 20, 2026

Author Spotlight: Insights into the Analysis of Human Interaction with 3D Virtual Objects
06:36

Author Spotlight: Insights into the Analysis of Human Interaction with 3D Virtual Objects

Published on: October 18, 2024

1.4K
Magnetically Induced Rotating Rayleigh-Taylor Instability
06:42

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

10.0K
Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms
07:31

Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms

Published on: February 8, 2019

7.2K

Area of Science:

  • * Materials Science
  • * Electrochemistry
  • * Nanotechnology

Background:

  • * Rapid advancements in remotely controlled systems utilizing chemical and physical principles.
  • * Need for contactless manipulation and dynamic control in micro/nanoscale systems.

Purpose of the Study:

  • * To demonstrate a synergetic combination of magnetic and electric fields for contactless control.
  • * To achieve simultaneous rotational motion and light emission from a functionalized wire.
  • * To investigate the coupling of electrochemiluminescence (ECL) with magnetically driven motion.

Main Methods:

  • * Utilized rotating magnetic fields to induce rotational motion of a gold-coated iron wire.
  • * Applied an external electric field for remote polarization and triggering of bipolar electrochemistry.
  • * Monitored changes in ECL intensity correlated with the wire's orientation and rotational speed.

Main Results:

  • * Successfully demonstrated contactless rotational control of the gold-coated iron wire using magnetic fields.
  • * Achieved simultaneous generation of electrochemiluminescence (ECL) via electric field-induced polarization.
  • * Observed enhanced ECL emission during rotation due to motion-induced convective flow, a novel finding.

Conclusions:

  • * ECL emission can be effectively coupled to magnetically controlled rotating bipolar objects.
  • * The developed dual magnetic and electric field-addressable system offers dynamic control.
  • * Opens exciting prospects for integrating imaging and sensing capabilities into dynamic micro/nanoscale systems.