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

You might also read

Related Articles

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

Sort by
Same author

Use of Glucagon-Like Peptide-1 Receptor Agonists and Risk of Parkinson's Disease: Scandinavian Cohort Study.

Diabetes, obesity & metabolism·2026
Same author

Plasma level of human epididymis protein 4 is associated with risk of future venous thromboembolism-the Trøndelag Health study.

Journal of thrombosis and haemostasis : JTH·2026
Same author

Novel Plasma Proteomic Markers and Risk of Venous Thromboembolism.

Circulation·2026
Same author

Health and economic assessment of ultrafine particles in Stockholm: Impacts of electrification and local policies.

Environment international·2025
Same author

Comparative Effectiveness of Atezolizumab, Nivolumab and Pembrolizumab in Second-Line Treatment of Advanced Non-Small Cell Lung Cancer.

Pharmacoepidemiology and drug safety·2025
Same author

Elevated Plasma MBL Levels Are Associated With Risk of Future Venous Thromboembolism: The HUNT Study.

Arteriosclerosis, thrombosis, and vascular biology·2025

Related Experiment Video

Updated: Mar 6, 2026

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
08:01

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

7.8K

Characterization of fine particles using optomagnetic measurements.

Jeppe Fock1, Christian Jonasson2, Christer Johansson2

  • 1Department of Micro- and Nanotechnology, DTU Nanotech, Technical University of Denmark, Bldg. 345B, DK-2800 Kongens Lyngby, Denmark. jepf@nanotech.dtu.dk Mikkel.Hansen@nanotech.dtu.dk.

Physical Chemistry Chemical Physics : PCCP
|March 16, 2017
PubMed
Summary

Optomagnetic measurements offer a simple and fast method to determine the magnetic moment and hydrodynamic size of magnetic nanoparticles (MNPs). This technique provides accurate results comparable to established methods, making it suitable for routine quality control.

More Related Videos

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
07:01

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

Published on: June 9, 2016

10.0K
Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
07:42

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Published on: July 20, 2022

3.4K

Related Experiment Videos

Last Updated: Mar 6, 2026

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
08:01

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

7.8K
Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
07:01

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

Published on: June 9, 2016

10.0K
Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
07:42

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Published on: July 20, 2022

3.4K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Physical Chemistry

Background:

  • Remanent magnetic moment and hydrodynamic size are critical parameters for magnetic nanoparticle (MNP) synthesis and applications.
  • Accurate characterization of these properties is essential for controlling MNP behavior and performance.

Purpose of the Study:

  • To present the theoretical framework for determining the remanent magnetic moment and hydrodynamic size of magnetic nanoparticles using optomagnetic measurements.
  • To establish optomagnetic measurements as a viable and efficient tool for MNP characterization.

Main Methods:

  • Utilizing optomagnetic measurements, specifically the 2nd harmonic variation of transmitted light intensity through an MNP suspension under an oscillating magnetic field.
  • Applying low-frequency measurements of optomagnetic signal magnitude versus magnetic field amplitude to determine MNP moment.
  • Employing linear response theory to link optomagnetic signals to magnetic AC susceptibility.

Main Results:

  • Demonstrated the ability to determine MNP moment and hydrodynamic size from optomagnetic signals.
  • Validated the optomagnetic technique against dynamic light scattering, AC susceptibility, and vibrating sample magnetometry.
  • Confirmed good agreement between optomagnetic results and established methods, considering size-weighting differences.

Conclusions:

  • Optomagnetic measurements provide a robust, simple, and rapid method for characterizing magnetic nanoparticles.
  • The technique does not require prior knowledge of MNP concentration, enhancing its practicality.
  • Optomagnetic measurements show significant potential as a routine quality control tool for magnetic nanoparticles.