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

Batteries and Fuel Cells03:12

Batteries and Fuel Cells

31.3K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
31.3K
Diffusion01:12

Diffusion

223.3K
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...
223.3K
Diffusion01:21

Diffusion

6.8K
Diffusion is a type of passive transport. In passive transport, a substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across the space. For example, take the diffusion of substances through the air. When someone opens a perfume bottle in a room filled with people, the perfume is at its highest concentration in the bottle and is at its lowest at the edges of the room. The perfume vapor will diffuse, or spread away, from the...
6.8K
Fluid Movement Between Compartments01:18

Fluid Movement Between Compartments

4.3K
The force applied by fluids against a surface, known as hydrostatic pressure, initiates the transfer of fluid among different compartments. Within our blood vessels, the blood's hydrostatic pressure is a result of the heart's pumping action. At the arteriolar end of capillaries, hydrostatic pressure (capillary blood pressure) exceeds the opposing colloid osmotic pressure created primarily by plasma proteins like albumin. This discrepancy in pressure propels plasma and nutrients from the...
4.3K
Aquaporins01:25

Aquaporins

6.6K
Aquaporins or AQPs are a family of integral membrane proteins whose primary function is to transport water, while some called aquaglyceroporins also transport glycerol. In addition, aquaporins have also been suspected to be involved in transporting volatile substances, such as carbon dioxide and ammonia, across membranes. Such AQPs that act as gas channels are often highly expressed in cells involved in the gaseous exchange, such as red blood cells, epithelial cells, and pulmonary capillaries.
6.6K
Facilitated Transport01:19

Facilitated Transport

18.9K
The chemical and physical properties of plasma membranes cause them to be selectively permeable. Since plasma membranes have both hydrophobic and hydrophilic regions, substances need to be able to transverse both regions. The hydrophobic area of membranes repels substances such as charged ions. Therefore, such substances need special membrane proteins to cross a membrane successfully. In  facilitated transport, also known as facilitated diffusion, molecules and ions travel across a...
18.9K

You might also read

Related Articles

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

Sort by
Same author

Cucurbituril-based anion-conducting membranes with supramolecular nanopores.

Nature·2026
Same author

Ionic Transfers across rGO/Fluorine-Free Ionomer Film Interfaces Studied by Electrogravimetric Methods.

ACS applied materials & interfaces·2026
Same author

Interplay of structure and dynamics in solid polymer electrolytes: a molecular dynamics study of LiPF<sub>6</sub>/polypropylene carbonate.

Physical chemistry chemical physics : PCCP·2026
Same author

Author Correction: Operando microimaging of crystal structure and orientation in all components of all-solid-state-batteries.

Nature communications·2026
Same author

Operando microimaging of crystal structure and orientation in all components of all-solid-state-batteries.

Nature communications·2025
Same author

Ionic Conductivity of Composite Polymer Electrolyte: Clarifying the Role of the Interface with Nonconductive Particles.

ChemSusChem·2025

Related Experiment Video

Updated: Feb 24, 2026

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells
06:39

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

Published on: October 20, 2023

3.9K

Water sub-diffusion in membranes for fuel cells.

Quentin Berrod1,2, Samuel Hanot3,4,5, Armel Guillermo6

  • 1LLB, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191, Gif-sur-Yvette, France.

Scientific Reports
|August 23, 2017
PubMed
Summary

Water dynamics in soft ionic nano-assemblies, crucial for fuel cell electrolytes, exhibit anomalous sub-diffusion due to nanoscale confinement. This finding impacts advanced materials and biophysics research.

More Related Videos

Hydrogen Production and Utilization in a Membrane Reactor
10:00

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

3.3K
Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
09:39

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination

Published on: March 1, 2020

7.9K

Related Experiment Videos

Last Updated: Feb 24, 2026

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells
06:39

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

Published on: October 20, 2023

3.9K
Hydrogen Production and Utilization in a Membrane Reactor
10:00

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

3.3K
Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
09:39

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination

Published on: March 1, 2020

7.9K

Area of Science:

  • Materials Science
  • Physical Chemistry
  • Nanotechnology

Background:

  • Understanding water dynamics in confined systems is vital for advanced materials, particularly in fuel cell electrolytes.
  • Perfluoro-sulfonic acid compounds form phase-separated morphologies essential for proton conductivity, driven by absorbed water's state and dynamics.

Purpose of the Study:

  • To investigate water dynamics and ion transport in soft ionic nano-assemblies.
  • To elucidate the relationship between nanoscale confinement, hydration, and transport properties in fuel cell materials.

Main Methods:

  • Combined Quasi Elastic Neutron Scattering (QENS), Pulsed Field Gradient Nuclear Magnetic Resonance (PFG-NMR), and Molecular Dynamics (MD) simulations.
  • Quantified water motion and ion transport across atomic, nanoscopic, and macroscopic scales.

Main Results:

  • Determined effective water and ion diffusion coefficients and their dependence on hydration levels.
  • Demonstrated anomalous sub-diffusion behavior caused by heterogeneous, space-dependent dynamics within ionic nanochannels.
  • Confirmed that nanoscale confinement and charged interface interactions are key drivers of anomalous diffusion, independent of the hydrophobic matrix chemistry.

Conclusions:

  • Confinement and interface interactions induce anomalous sub-diffusion in water within ionic nanochannels, irrespective of the confining matrix.
  • Findings offer insights into structure-function relationships in advanced materials and suggest cross-disciplinary applications in biophysics and statistical mechanics.
  • Established new avenues for analyzing neutron scattering data in complex systems.