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

Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

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. This...
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
Atomic Nuclei: Types of Nuclear Relaxation01:28

Atomic Nuclei: Types of Nuclear Relaxation

Nuclear relaxation restores the equilibrium population imbalance and can occur via spin–lattice or spin–spin mechanisms, which are first-order exponential decay processes.
In spin–lattice or longitudinal relaxation, the excited spins exchange energy with the surrounding lattice as they return to the lower energy level. Among several mechanisms that contribute to spin–lattice relaxation, magnetic dipolar interactions are significant. Here, the excited nucleus transfers energy to a nearby...
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences01:17

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.
Atomic Nuclei: Magnetic Resonance01:05

Atomic Nuclei: Magnetic Resonance

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...
Nuclear Overhauser Enhancement (NOE)01:06

Nuclear Overhauser Enhancement (NOE)

Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling. This phenomenon, called the nuclear Overhauser enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring spin-active...

You might also read

Related Articles

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

Sort by
Same author

Self-thickening mechanism of an amphiphilic polymer during acid rock reaction and performance testing.

Frontiers in chemistry·2026
Same author

SABRE Hyperpolarized Multichannel <sup>19</sup>F NMR for Sensitive Detection of Multiple Disease Marker Enzymes on a Benchtop NMR.

Angewandte Chemie (International ed. in English)·2026
Same author

A Multifunctional Metal-Organic Frameworks-Based Nanoplatform for Tumor Imaging and Antimetastasis Immunotherapy by Exploiting the Versatility of Manganese Ions.

ACS applied materials & interfaces·2025
Same author

Multistimuli-Responsive Conductive Hydrogels for Information Encryption, Decryption, and Wearable Sensors.

ACS applied materials & interfaces·2025
Same author

Cinnamaldehyde-Containing Organoarsenic Prodrug with Synergistic Anticancer Activity via Redox Dyshomeostasis.

Molecular pharmaceutics·2025
Same author

Small Fluorinated Aromatic Molecule-Based Radiofrequency Identification Tags Enabled by Stepwise Tuning of Nuclear Shielding.

Angewandte Chemie (International ed. in English)·2025

Related Experiment Video

Updated: Jul 12, 2026

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Nuclear Spin Relaxation Modulation of Fluorinated Deep Eutectic Solvents for Radiofrequency Information Encoding and

Yuhang Jiang1, Junjie Wang1, Chenlei Tan1

  • 1The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory For Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China.

Advanced Materials (Deerfield Beach, Fla.)
|July 11, 2026
PubMed
Summary

Researchers developed a new 19F magnetic resonance display platform using spin relaxation. This method encodes information in fluorinated materials, enabling tunable, rewritable, and secure displays for anticounterfeiting applications.

Keywords:
19F magnetic resonance imaginganti‐counterfeitingdeep eutectic solventsinformation securitymolecular encodingnuclear spinparamagnetic modulation

More Related Videos

Measuring the Spin-Lattice Relaxation Magnetic Field Dependence of Hyperpolarized [1-13C]pyruvate
11:57

Measuring the Spin-Lattice Relaxation Magnetic Field Dependence of Hyperpolarized [1-13C]pyruvate

Published on: September 13, 2019

NMR 15N Relaxation Experiments for the Investigation of Picosecond to Nanoseconds Structural Dynamics of Proteins
09:25

NMR 15N Relaxation Experiments for the Investigation of Picosecond to Nanoseconds Structural Dynamics of Proteins

Published on: November 1, 2024

Related Experiment Videos

Last Updated: Jul 12, 2026

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Measuring the Spin-Lattice Relaxation Magnetic Field Dependence of Hyperpolarized [1-13C]pyruvate
11:57

Measuring the Spin-Lattice Relaxation Magnetic Field Dependence of Hyperpolarized [1-13C]pyruvate

Published on: September 13, 2019

NMR 15N Relaxation Experiments for the Investigation of Picosecond to Nanoseconds Structural Dynamics of Proteins
09:25

NMR 15N Relaxation Experiments for the Investigation of Picosecond to Nanoseconds Structural Dynamics of Proteins

Published on: November 1, 2024

Area of Science:

  • Materials Science
  • Nuclear Magnetic Resonance (NMR) Spectroscopy
  • Information Technology

Background:

  • Nuclear spin properties are fundamental to NMR.
  • Fluorinated materials offer tunable 19F spin systems for various applications.
  • Current 19F NMR primarily uses frequency encoding, limiting spin relaxation's use for information encoding.

Purpose of the Study:

  • To present a 19F magnetic resonance display platform that utilizes spin relaxation modulation for information encoding.
  • To demonstrate the synergistic control of material design and pulse sequence for enhanced information display.
  • To expand nuclear magnetic information encoding by incorporating controllable 19F spin relaxation.

Main Methods:

  • Incorporation of paramagnetic metal ions into fluorinated deep eutectic solvents to tune 19F relaxation times.
  • Development of relaxation-selective pulse sequences for selective information visualization.
  • Utilizing UV-printable paramagnetic fluorinated ionogels for rapid and rewritable information display.

Main Results:

  • Precise tuning of 19F relaxation times for information encoding was achieved.
  • Selective visualization of encoded information was demonstrated using tailored pulse sequences.
  • Reversible data editing via photoredox responses and rewritable information display were enabled.

Conclusions:

  • Controllable 19F spin relaxation serves as an additional information domain, transforming a physical parameter into an information carrier.
  • The developed platform enables selective, responsive, and non-luminescent displays.
  • This technology is suitable for high-confidential anticounterfeiting and advanced information display applications.