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

Other Unique Bacteria01:18

Other Unique Bacteria

205
Magnetic bacteria exhibit a directed movement called magnetotaxis, driven by structures called magnetosomes. These magnetosomes consist of chains of magnetic particles made of either magnetite (Fe₃O₄) or greigite (Fe₃S₄) and are organized in a linear conformation by a protein scaffold within invaginations of the cell membrane. The bacteria align along the north–south magnetic field lines, much like a compass needle. They are typically microaerophilic or anaerobic...
205
Proteomics01:33

Proteomics

8.8K
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
8.8K

You might also read

Related Articles

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

Sort by
Same author

Spin-echo measurements for capillary rheometry at low field.

Magnetic resonance letters·2026
Same author

Characterization of shale using T<sub>2</sub>-T<sub>2</sub><sup>∗</sup> relaxation correlation measurements.

Journal of magnetic resonance (San Diego, Calif. : 1997)·2026
Same author

Velocity measurement in porous media using steady-state free precession-Analytical solution to the Bloch-Torrey equation with flow.

The Journal of chemical physics·2025
Same author

T<sub>2</sub>-T<sub>2</sub><sup>∗</sup> relaxation correlation measurement.

Journal of magnetic resonance (San Diego, Calif. : 1997)·2025
Same author

State of Charge in a Vanadium Redox Flow Battery Measured via <sup>1</sup>H MR Relaxation with Low Field Portable Magnets.

Analytical chemistry·2025
Same author

Multinuclear MR and MRI study of lithium-ion cells using a variable field magnet and a fixed frequency RF probe.

Magnetic resonance letters·2025

Related Experiment Video

Updated: Nov 11, 2025

Assessing the Influence of Personality on Sensitivity to Magnetic Fields in Zebrafish
07:47

Assessing the Influence of Personality on Sensitivity to Magnetic Fields in Zebrafish

Published on: March 18, 2019

6.9K

A portable, submersible, MR sensor - The Proteus magnet.

Michael M B Ross1, Grant R Wilbur1, Prisciliano F de J Cano Barrita2

  • 1UNB MRI Centre, Department of Physics, University of New Brunswick, Fredericton, New Brunswick E3B 5A3, Canada.

Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|March 27, 2021
PubMed
Summary

A novel portable magnet, the Proteus magnet, was designed for liquid 1H measurements. This submersible device, built from affordable neodymium magnets, enables diverse magnetic resonance (MR) experiments.

Keywords:
CPMGD – T(2)DiffusionDipole magnetsImmersion sensorMagnetic resonancePortable NMRProteusT(1) – T(2)

More Related Videos

Nanosensors to Detect Protease Activity In Vivo for Noninvasive Diagnostics
10:50

Nanosensors to Detect Protease Activity In Vivo for Noninvasive Diagnostics

Published on: July 16, 2018

16.6K
Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors
07:59

Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors

Published on: December 6, 2018

8.4K

Related Experiment Videos

Last Updated: Nov 11, 2025

Assessing the Influence of Personality on Sensitivity to Magnetic Fields in Zebrafish
07:47

Assessing the Influence of Personality on Sensitivity to Magnetic Fields in Zebrafish

Published on: March 18, 2019

6.9K
Nanosensors to Detect Protease Activity In Vivo for Noninvasive Diagnostics
10:50

Nanosensors to Detect Protease Activity In Vivo for Noninvasive Diagnostics

Published on: July 16, 2018

16.6K
Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors
07:59

Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors

Published on: December 6, 2018

8.4K

Area of Science:

  • Materials Science
  • Magnetic Resonance Imaging (MRI)
  • Physical Chemistry

Background:

  • Magnetic Resonance (MR) measurements are crucial for analyzing liquid properties.
  • Existing portable MR systems often lack versatility or are prohibitively expensive.
  • A need exists for cost-effective, adaptable portable magnets for in-situ MR analysis.

Purpose of the Study:

  • To design, fabricate, and test a novel portable magnet, the Proteus magnet.
  • To enable a wide range of 1H magnetic resonance measurements on liquids.
  • To demonstrate the magnet's functionality when fully submersed within the sample.

Main Methods:

  • The Proteus magnet was constructed using two commercial N52 Neodymium (NdFeB) disk magnets.
  • Magnets were axially polarized and aligned, separated by 10 mm to accommodate RF components.
  • Evaluated using Carr-Purcell-Meiboom-Gill (CPMG), saturation recovery T1, self-diffusion, T1-T2, and D-T2 measurements.

Main Results:

  • Successful fabrication of a compact, submersible Proteus magnet.
  • Demonstrated capability for various 1H MR measurements, including relaxation times and diffusion.
  • The design accommodates essential radiofrequency (RF) shielding and probe integration.

Conclusions:

  • The Proteus magnet represents a versatile and cost-effective solution for portable MR.
  • Its submersible nature allows for direct in-situ analysis of liquid samples.
  • This portable system broadens accessibility for diverse liquid-state MR applications.