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

7.8K
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...
7.8K
Diamagnetic Shielding of Nuclei: Local Diamagnetic Current01:14

Diamagnetic Shielding of Nuclei: Local Diamagnetic Current

1.6K
An applied magnetic field causes the electrons present in the molecule to circulate, setting up a local diamagnetic current within the molecule. The local diamagnetic current arising from circulating sigma-bonding electrons induces a magnetic field, Blocal that opposes the applied magnetic field, B0. The effective magnetic field experienced by these nuclei is given by the difference between the applied and local magnetic fields in a phenomenon called local diamagnetic shielding. Essentially,...
1.6K
Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

1.3K
In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis.
1.3K
Atomic Nuclei: Magnetic Resonance01:05

Atomic Nuclei: Magnetic Resonance

1.4K
The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...
1.4K
Magnetism01:30

Magnetism

9.7K
Magnets are commonly found in everyday objects, such as toys, hangers, elevators, doorbells, and computer devices. Experimentation on these magnets shows that all magnets have two poles: one is labeled north (N) and the other south (S). Magnetic poles repel if they are alike and attract if unlike. Moreover, both poles of a magnet attract unmagnetized pieces of iron.
An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...
9.7K
Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals01:17

Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals

3.7K
Ideally, an unpaired electron shows a single peak in the EPR spectrum due to the transition between the two spin energy states. However, coupling interactions can occur between the spins of the unpaired electron and any neighboring spin-active nuclei. This hyperfine coupling results in hyperfine splitting, where the EPR signal is split into multiplets. The signals split into 2nI + 1 peaks, where n is the number of equivalent nuclei and I is the nuclear spin. These splitting patterns provide...
3.7K

You might also read

Related Articles

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

Sort by
Same author

Large extinction ratio optical electrowetting shutter.

Optics express·2016
Same journal

Smartwatch low-SAR approach based on antenna integrated with metamaterial protection layer.

Electromagnetic biology and medicine·2026
Same journal

Frequency-specific effects of pulsed magnetic field on BV2 microglial cell function.

Electromagnetic biology and medicine·2026
Same journal

Bi-layer hybrid nano-blood flow under electromagnetic actuation in a squeezing channel.

Electromagnetic biology and medicine·2026
Same journal

Quantum coherence stabilization in biology via feedback with coherent background fields.

Electromagnetic biology and medicine·2026
Same journal

A magnetic coupled resonance transmission-based regulation of LTP in the Schaffer-CA1 region of the hippocampus by WP-μMS.

Electromagnetic biology and medicine·2026
Same journal

Synergistic effects of magnetic field and nanoparticle dynamics on peristaltic transport of non-newtonian fluid in wavy channel.

Electromagnetic biology and medicine·2026
See all related articles

Related Experiment Video

Updated: Mar 18, 2026

Geomagnetic Field Gmf and Plant Evolution: Investigating the Effects of Gmf Reversal on Arabidopsis thaliana Development and Gene Expression
11:04

Geomagnetic Field Gmf and Plant Evolution: Investigating the Effects of Gmf Reversal on Arabidopsis thaliana Development and Gene Expression

Published on: November 30, 2015

14.0K

Magnetic fields, radicals and cellular activity.

Ryan D Montoya1

  • 1a ECEE Department , University of Colorado Boulder , Boulder , CO , USA.

Electromagnetic Biology and Medicine
|July 12, 2016
PubMed
Summary
This summary is machine-generated.

Low-intensity magnetic fields may alter radical concentrations, influencing cellular functions like growth. This radical pair chemistry offers a potential mechanism for magnetic field effects on cells, relevant to cancer research.

Keywords:
Cell activityfree radicalsmagnetic fieldsradicals

More Related Videos

Enhancement of the Initial Growth Rate of Agricultural Plants by Using Static Magnetic Fields
05:17

Enhancement of the Initial Growth Rate of Agricultural Plants by Using Static Magnetic Fields

Published on: July 8, 2016

13.9K
Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
09:30

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

Published on: December 18, 2016

20.2K

Related Experiment Videos

Last Updated: Mar 18, 2026

Geomagnetic Field Gmf and Plant Evolution: Investigating the Effects of Gmf Reversal on Arabidopsis thaliana Development and Gene Expression
11:04

Geomagnetic Field Gmf and Plant Evolution: Investigating the Effects of Gmf Reversal on Arabidopsis thaliana Development and Gene Expression

Published on: November 30, 2015

14.0K
Enhancement of the Initial Growth Rate of Agricultural Plants by Using Static Magnetic Fields
05:17

Enhancement of the Initial Growth Rate of Agricultural Plants by Using Static Magnetic Fields

Published on: July 8, 2016

13.9K
Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
09:30

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

Published on: December 18, 2016

20.2K

Area of Science:

  • Biophysics
  • Cell Biology
  • Quantum Biology

Background:

  • Low-intensity magnetic fields' effects on biological systems are not fully understood.
  • Radical pair chemistry is closely linked to cellular functions, from signaling to oxidative damage.

Purpose of the Study:

  • To review the effects of low-intensity magnetic fields on radical concentrations.
  • To explore the role of radical pair chemistry in mediating cellular responses to magnetic fields.
  • To discuss the implications for cancer research.

Main Methods:

  • Literature review of experimental evidence on magnetic field effects on biological systems.
  • Analysis of studies linking radical chemistry to cellular functions.
  • Examination of proposed mechanisms, including radical recombination and cell membrane potential modulation.

Main Results:

  • External magnetic fields can modulate radical recombination rates.
  • Changes in radical concentrations are observed to influence specific cellular functions, including cell growth inhibition and acceleration.
  • Variations in radical concentrations correlate with differences between healthy and cancerous cells.

Conclusions:

  • Radical pair chemistry provides a plausible molecular mechanism for some low-intensity magnetic field effects on cells.
  • Modulation of radical concentrations by magnetic fields may influence cellular processes like growth and regression.
  • Understanding these mechanisms is crucial for exploring novel cancer therapies.