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

Assessment of Diffusion and Perfusion01:17

Assessment of Diffusion and Perfusion

Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this principle...
Protein Diffusion in the Membrane01:24

Protein Diffusion in the Membrane

Proteins show rotational as well as lateral diffusion across the membrane. The lateral diffusion of proteins was confirmed through the cell fusion experiment where mouse and human cells were fused, resulting in hybrid cells. When the human and mouse cells fused, the specific membrane proteins on human and mouse cells were marked with the red and green-fluorescent markers, respectively. Initially, the red and green fluorescence was located on the respective hemisphere of the cell. As time...
Diffusion01:12

Diffusion

Diffusion is the passive movement of substances down their concentration gradients—requiring no expenditure of cellular energy. Substances, such as molecules or ions, diffuse from an area of high concentration to an area of low concentration in the cytosol or across membranes. Eventually, the concentration will even out, with the substance moving randomly but causing no net change in concentration. Such a state is called dynamic equilibrium, which is essential for maintaining overall...

You might also read

Related Articles

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

Sort by
Same author

Quantitative Susceptibility Mapping of Kidney Stones: An Ex Vivo MRI Phantom Study.

Magnetic resonance in medicine·2026
Same author

Finite sample size errors in the context of multiple error sources in quantitative medical imaging: An evaluation for breast magnetic resonance diffusion-weighted imaging.

PloS one·2026
Same author

Artificial Intelligence-Enhanced Identification of Incidental Findings in Prostate MRI.

Investigative radiology·2026
Same author

Evaluation of Individual T1w-DIXON Contrasts for Subtraction Generation in Dynamic Contrast-Enhanced Breast MRI.

Diagnostics (Basel, Switzerland)·2026
Same author

Exploring magnetic resonance imaging validation of length-based scaling of musculoskeletal models using OpenSim and AddBiomechanics for walking.

PeerJ·2026
Same author

Towards Clinical Translation of Intravoxel Incoherent Motion MRI: Acquisition and Analysis Consensus Recommendations.

Journal of magnetic resonance imaging : JMRI·2026
Same journal

Repeatability of an MRI protocol for generating habitats based on cellularity, perfusion, and hypoxia in a murine model of glioma.

Magnetic resonance imaging·2026
Same journal

Association between CMR-derived pulmonary artery pulse wave velocity and pulmonary risk factors: the multi-ethnic study of atherosclerosis COPD study.

Magnetic resonance imaging·2026
Same journal

Systematic comparison of MPRAGE and BRAVO T1-weighted MRI pulse sequences and brain morphometry in high-risk young adults.

Magnetic resonance imaging·2026
Same journal

Foot dynamic contrast-enhanced MRI for assessing microcirculatory changes after endovascular therapy in peripheral artery disease: A prospective pilot study.

Magnetic resonance imaging·2026
Same journal

Reconstruction of MRI from undersampled k-spaces of double-contrast volume acquisitions using deep neural networks.

Magnetic resonance imaging·2026
Same journal

Radiofrequency-induced heating safety of brain MRI scans at 7 T in the presence of a shoulder implant.

Magnetic resonance imaging·2026
See all related articles

Related Experiment Video

Updated: May 11, 2026

From Fast Fluorescence Imaging to Molecular Diffusion Law on Live Cell Membranes in a Commercial Microscope
15:10

From Fast Fluorescence Imaging to Molecular Diffusion Law on Live Cell Membranes in a Commercial Microscope

Published on: October 9, 2014

Diffusion pore imaging with generalized temporal gradient profiles.

Frederik B Laun1, Tristan A Kuder

  • 1Medical Physics in Radiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany. f.laun@dkfz.de

Magnetic Resonance Imaging
|May 22, 2013
PubMed
Summary
This summary is machine-generated.

Nuclear magnetic resonance diffusion (NMR) experiments can now image pore shapes using generalized temporal gradient profiles. This advancement expands the capabilities of NMR-based diffusion pore imaging for porous material research.

Keywords:
DiffusionNMRPore imaging

More Related Videos

Image Processing Protocol for the Analysis of the Diffusion and Cluster Size of Membrane Receptors by Fluorescence Microscopy
12:15

Image Processing Protocol for the Analysis of the Diffusion and Cluster Size of Membrane Receptors by Fluorescence Microscopy

Published on: April 9, 2019

Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing (MTT)
12:19

Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing (MTT)

Published on: May 27, 2012

Related Experiment Videos

Last Updated: May 11, 2026

From Fast Fluorescence Imaging to Molecular Diffusion Law on Live Cell Membranes in a Commercial Microscope
15:10

From Fast Fluorescence Imaging to Molecular Diffusion Law on Live Cell Membranes in a Commercial Microscope

Published on: October 9, 2014

Image Processing Protocol for the Analysis of the Diffusion and Cluster Size of Membrane Receptors by Fluorescence Microscopy
12:15

Image Processing Protocol for the Analysis of the Diffusion and Cluster Size of Membrane Receptors by Fluorescence Microscopy

Published on: April 9, 2019

Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing (MTT)
12:19

Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing (MTT)

Published on: May 27, 2012

Area of Science:

  • Porous material characterization
  • Nuclear Magnetic Resonance (NMR) spectroscopy
  • Diffusion MRI

Background:

  • Determining pore shape is a key challenge in porous material research.
  • Nuclear magnetic resonance diffusion (NMR) experiments are crucial for this analysis.
  • Recent advancements have enabled NMR-based diffusion pore imaging.

Purpose of the Study:

  • To generalize the methods for NMR-based diffusion pore imaging.
  • To explore the uniqueness of temporal diffusion gradient profiles used in pore imaging.
  • To demonstrate the applicability of more general gradient profiles.

Main Methods:

  • Investigated generalized temporal diffusion gradient profiles beyond previously used specific profiles.
  • Showcased the use of multiple "short" gradient pulses under the short-gradient approximation.
  • Incorporated "long" gradient pulses of small amplitude to satisfy rephasing conditions.

Main Results:

  • Established that temporal diffusion gradient profiles are not unique for NMR pore imaging.
  • Demonstrated that a broader range of gradient profiles can be employed.
  • Identified exceptions, such as classical q-space gradients, which are unsuitable due to phase information loss.

Conclusions:

  • NMR-based diffusion pore imaging can be achieved with more general temporal gradient profiles.
  • This generalization expands the toolkit for characterizing pore structures in materials.
  • Careful selection of gradient profiles is necessary to preserve essential phase information.