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

Magnetic Fields01:27

Magnetic Fields

7.7K
A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
A magnetic field is defined by the force that a charged particle experiences...
7.7K
Magnetic Field due to Moving Charges01:23

Magnetic Field due to Moving Charges

12.1K
A stationary charge creates and interacts with the electric field, while a moving charge creates a magnetic field.
Consider a point charge moving with a constant velocity. Like the electric field, the magnetic field at any point is directly proportional to the magnitude of the charge and inversely proportional to the square of the distance between the source point and the field point. However, unlike the electric field, the magnetic field is always perpendicular to the plane containing the line...
12.1K
Magnetic Field Of A Current Loop01:16

Magnetic Field Of A Current Loop

6.7K
Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
6.7K
Motion Of A Charged Particle In A Magnetic Field01:22

Motion Of A Charged Particle In A Magnetic Field

7.7K
A charged particle experiences a force when moving through a magnetic field. Consider the field to be uniform and the charged particle to move perpendicular to it. If the field is in a vacuum, the magnetic field is the dominant factor determining the motion. Since the magnetic force is perpendicular to the direction of motion, a charged particle follows a curved path. The particle continues to follow this curved path until it forms a complete circle. Another way to look at this is that the...
7.7K
Potential Due to a Magnetized Object01:24

Potential Due to a Magnetized Object

849
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...
849
Magnetic Field Due To A Thin Straight Wire01:28

Magnetic Field Due To A Thin Straight Wire

6.5K
Consider an infinitely long straight wire carrying a current I. The magnetic field at point P at a distance a from the origin can be calculated using the Biot-Savart law.
6.5K

You might also read

Related Articles

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

Sort by
Same author

Ion sensing based on frequency-dependent physico-chemical processes at electrode/electrolyte interfaces.

Nature communications·2025
Same author

High-aspect ratio titanium nanopillars modulate macrophage responses.

Biomaterials advances·2025
Same author

A comparative numerical evaluation of linear anode arrangements for enhancing above ground storage tank cathodic protection via mesh grid and concentric ring designs.

Scientific reports·2023
Same author

Vacuum Deposited Perovskites with a Controllable Crystal Orientation.

The journal of physical chemistry letters·2023
Same author

Small Bowel Lymphangiectasia Leading to Massive Gastrointestinal Bleeding: A Case Report.

Middle East journal of digestive diseases·2023
Same author

Neuroprotective effects of nerolidol against Alzheimer's disease in Wistar rats.

Drug development research·2022

Related Experiment Video

Updated: Mar 12, 2026

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores
09:43

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores

Published on: October 31, 2013

14.2K

Streaming current magnetic fields in a charged nanopore.

Abraham Mansouri1, Peyman Taheri2, Larry W Kostiuk3

  • 1Department of Mechanical Engineering, American University in Dubai, Dubai, 28282, UAE.

Scientific Reports
|November 12, 2016
PubMed
Summary

Magnetic fields generated by ionic currents in nanopores were modeled. These fields, strongest near the pore wall, could serve as secondary electronic signatures for biomolecule detection in nanopore sequencing.

More Related Videos

Monitoring Protein Adsorption with Solid-state Nanopores
08:51

Monitoring Protein Adsorption with Solid-state Nanopores

Published on: December 2, 2011

14.1K
High Resolution Physical Characterization of Single Metallic Nanoparticles
09:56

High Resolution Physical Characterization of Single Metallic Nanoparticles

Published on: June 28, 2019

6.2K

Related Experiment Videos

Last Updated: Mar 12, 2026

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores
09:43

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores

Published on: October 31, 2013

14.2K
Monitoring Protein Adsorption with Solid-state Nanopores
08:51

Monitoring Protein Adsorption with Solid-state Nanopores

Published on: December 2, 2011

14.1K
High Resolution Physical Characterization of Single Metallic Nanoparticles
09:56

High Resolution Physical Characterization of Single Metallic Nanoparticles

Published on: June 28, 2019

6.2K

Area of Science:

  • Physics
  • Physical Chemistry
  • Nanotechnology

Background:

  • Charged nanopores exhibit pressure-driven flows, generating electric currents.
  • Understanding the magnetic fields produced by these ionic currents is crucial for advanced sensing applications.

Purpose of the Study:

  • To model and analyze the magnetic fields induced by pressure-driven ionic currents within a solid-state charged nanopore.
  • To explore the potential of these magnetic fields as secondary signatures for biomolecule detection.

Main Methods:

  • Numerical solution of coupled Poisson, Nernst-Planck, Ampere, and Navier-Stokes equations (PNPANS).
  • Analysis using non-dimensional transport equations scaled by Debye length for a finite cylindrical nano-channel.

Main Results:

  • Excellent agreement between numerical and analytical studies verified magnetic field density.
  • Radially non-uniform currents produced highly non-uniform magnetic fields inside the nanopore.
  • Maximum magnetic field observed near the nanopore wall, differing from conventional current-carrying conductors.

Conclusions:

  • The study successfully modeled magnetic fields generated by ionic flow in nanopores.
  • External magnetic field readouts from ionic currents offer a novel, non-invasive method for biomolecule detection.
  • This technique can complement existing nanopore sequencing methods for enhanced DNA analysis.