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 Experiment Videos

Mapping molecular orientation in solids by rotating-frame NQR techniques

Casanova1, Robert, Pusiol

  • 1Astronomia y Fisica, Universidad Nacional de Cordoba, Cordoba, 5000, Argentina.

Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|July 9, 1998
PubMed
Summary

This study introduces a novel multi-dimensional nuclear quadrupole resonance (NQR) technique. It enables imaging of nuclear distribution and electric field gradient tensor orientation in solids.

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

Morphological Convolutional Neural Network for Efficient Facial Expression Recognition.

Journal of imaging·2026
Same author

T-cell senescence was correlated with early atherosclerosis in patients with systemic lupus erythematosus.

International journal of rheumatic diseases·2024
Same author

New Operation for Prolapsus Ani.

Western journal of medicine and surgery·2024
Same author

Still about polio.

Concours medical·2010
Same author

Incorporation of microalgae sterols by scallop Pecten maximus (L.) larvae.

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology·2001
Same author

Influence of Protein Interfacial Composition on Salt Stability of Mixed Casein Emulsions.

Journal of agricultural and food chemistry·2001

Area of Science:

  • Solid-state physics
  • Materials science
  • Nuclear magnetic resonance spectroscopy

Background:

  • Nuclear quadrupole resonance (NQR) is sensitive to local electronic environments.
  • Characterizing the spatial distribution and orientation of quadrupolar nuclei in solids is challenging.
  • Existing NQR methods often lack spatial or orientational resolution.

Purpose of the Study:

  • To develop a multi-dimensional NQR technique for imaging.
  • To simultaneously determine the spatial distribution of quadrupolar nuclei and the orientation of electric field gradient (EFG) tensors.
  • To provide detailed insights into molecular ordering and structural properties of solid materials.

Main Methods:

  • Utilized a pulse sequence with spatially homogeneous and inhomogeneous radiofrequency fields for encoding.

Related Experiment Videos

  • Developed a method to encode spatial and orientational information into free-induction decay (FID) signal amplitudes.
  • Implemented a 3D reconstruction algorithm to generate space-orientation-dependent NQR spectra.

    • Main Results:

    • Successfully demonstrated a multi-dimensional NQR technique capable of spatial and orientational imaging.
    • The 3D reconstruction yields detailed NQR spectra as a function of both position and orientation.
    • A 2D variant was developed for rapid measurement of spatially dependent molecular orientation distributions, excluding spectroscopic data.

    Conclusions:

    • The reported multi-dimensional NQR technique offers unprecedented capabilities for solid-state analysis.
    • This method allows for comprehensive characterization of nuclear distribution and EFG tensor orientation.
    • The technique has potential applications in materials science, solid-state chemistry, and structural analysis.