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

¹H NMR Signal Multiplicity: Splitting Patterns01:13

¹H NMR Signal Multiplicity: Splitting Patterns

5.1K
When protons A and X are coupled, their nuclear spin energy levels are slightly modified. This is because the energy required to excite proton A to a spin state parallel to proton X is slightly different from the energy required for it to become anti-parallel to spin X. Consequently, there are two possible excitation frequencies for A (A1 and A2), depending on the spin state of X, and vice versa. The mutual nature of coupling implies that the difference between frequencies A1 and A2, indicated...
5.1K
¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

1.0K
Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
1.0K
Spin–Spin Coupling Constant: Overview01:08

Spin–Spin Coupling Constant: Overview

911
In bromoethane, the three methyl protons are coupled to the two methylene protons that are three bonds away. In accordance with the n+1 rule, the signal from the methyl protons is split into three peaks with 1:2:1 relative intensities. The methylene protons appear as a quartet, with the relative intensities of 1:3:3:1.
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must...
911
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

199
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...
199
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

934
NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of...
934
Atomic Nuclei: Nuclear Spin01:08

Atomic Nuclei: Nuclear Spin

1.9K
All atomic particles possess an intrinsic angular momentum, or 'spin'. Electrons, protons, and neutrons each have a spin value of ½, although protons and neutrons in nuclei may have higher half-integer spins owing to energetic factors.
Atomic nuclei have a net nuclear spin, , which can have an integer or half-integer value. In atomic nuclei, the spins of protons are paired against each other but not with neutrons, and vice versa. Consequently, an even number of protons does not...
1.9K

You might also read

Related Articles

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

Sort by
Same author

Collective Oscillations of Photothermal Micromotors under Static Illumination.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

A Sweet and Stable Strike: Multivalent Glucosylated Gd-DOTBA Conjugate with Ultrahigh Relaxivity for Targeted MRI of Aggressive Cancers.

Journal of medicinal chemistry·2026
Same author

Green-Kubo relation in a mesoscale odd fluid model.

The Journal of chemical physics·2026
Same author

Mesoscale simulation model for odd fluids.

Physical review. E·2026
Same author

Aspartame may promote erectile dysfunction via DPP4-mediated endothelial dysfunction and apoptosis: evidence from network toxicology, molecular dynamics simulation, and experimental validation.

Frontiers in nutrition·2026
Same author

Systematic review and meta-analysis of AI in lung cancer metastasis imaging for diagnosis and prognosis.

NPJ digital medicine·2026

Related Experiment Video

Updated: Jun 26, 2025

Study of Protein Dynamics via Neutron Spin Echo Spectroscopy
08:03

Study of Protein Dynamics via Neutron Spin Echo Spectroscopy

Published on: April 13, 2022

2.1K

Odd Response-Induced Phase Separation of Active Spinners.

Yu Ding1,2, Boyi Wang1,2, Qing Yang1,3

  • 1Beijing National Laboratory for Condensed Matter Physics and Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

Research (Washington, D.C.)
|May 8, 2024
PubMed
Summary

Active spinner systems with odd viscosity and elasticity display unique phase transitions. Odd viscosity drives anisotropic phase separation, while odd elasticity causes condensation into solid-like phases, revealing exotic behaviors.

More Related Videos

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
08:55

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy

Published on: October 9, 2020

5.6K
Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

9.9K

Related Experiment Videos

Last Updated: Jun 26, 2025

Study of Protein Dynamics via Neutron Spin Echo Spectroscopy
08:03

Study of Protein Dynamics via Neutron Spin Echo Spectroscopy

Published on: April 13, 2022

2.1K
High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
08:55

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy

Published on: October 9, 2020

5.6K
Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

9.9K

Area of Science:

  • Soft Matter Physics
  • Non-equilibrium Statistical Mechanics

Background:

  • Active spinner systems possess unique properties like odd viscosity and odd elasticity due to broken symmetries and non-conservative interactions.
  • These properties lead to phenomena not observed in passive or traditional active systems.

Purpose of the Study:

  • To investigate the influence of odd viscosity and odd elasticity on the phase behavior of active spinner systems.
  • To understand the mechanisms behind exotic phase transitions in these systems.

Main Methods:

  • Theoretical study of active spinner fluids and solids under shear.
  • Analysis of phase separation dynamics considering odd viscosity and odd elasticity.
  • Investigation of the interplay between thermal fluctuations and odd response-induced forces.

Main Results:

  • Under simple shear, active spinner fluids exhibit anisotropic gas-liquid phase separation driven by odd-viscosity stress.
  • This phase separation displays equilibrium-like characteristics, including binodal-like, spinodal curves, and a critical point.
  • The liquid phase is unstable and rapidly condenses into a solid-like phase due to the dominance of odd elasticity over odd viscosity.

Conclusions:

  • The cooperation between odd viscosity and odd elasticity leads to exotic phase behaviors in active spinner systems.
  • Competition between thermal fluctuations and odd response-induced attraction governs these unusual phase transitions.
  • Odd viscosity and elasticity play fundamental roles in driving novel phase transitions in active matter.