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

What is an Electrochemical Gradient?01:26

What is an Electrochemical Gradient?

128.6K
Adenosine triphosphate, or ATP, is considered the primary energy source in cells. However, energy can also be stored in the electrochemical gradient of an ion across the plasma membrane, which is determined by two factors: its chemical and electrical gradients.
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
128.6K
Power01:08

Power

13.1K
The concept of work involves force and displacement; meanwhile, the work-energy theorem relates the net work done on a body to the difference in its kinetic energy, calculated between two points on its trajectory. While none of these quantities or relations involves time explicitly, we know that the time available to accomplish work is often just as important as the amount of work itself. For example, sprinters in a race may have achieved the same velocity at the finish, therefore,...
13.1K
Nuclear Power02:36

Nuclear Power

9.5K
Controlled nuclear fission reactions are used to generate electricity. Any nuclear reactor that produces power via the fission of uranium or plutonium by bombardment with neutrons has six components: nuclear fuel consisting of fissionable material, a nuclear moderator, a neutron source, control rods, reactor coolant, and a shield and containment system.
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...
9.5K
Assembly of the Lipid Bilayer in the ER01:28

Assembly of the Lipid Bilayer in the ER

4.3K
Biological membranes are more than just a barrier separating cell cytoplasm from the outside environment. They are highly dynamic and help maintain the integrity and physiological stability of the cells as well as membrane-bound organelles. Membranes also play vital roles in cell-to-cell and intracellular communication.
A large chunk of any biological membrane is composed of phospholipids. These lipids have a heterogeneous distribution across different subcellular organelles and even between...
4.3K
Asymmetric Lipid Bilayer01:35

Asymmetric Lipid Bilayer

10.0K
Biological membranes show uneven distribution of different types of lipids in the inner and outer layers, resulting in transverse asymmetric membranes. The treatment of the erythrocyte membrane with the enzyme phospholipase confirmed the asymmetric nature of the lipid bilayer. The enzyme hydrolyzes lipids into fatty acids and hydrophilic groups. The phospholipase acts only on the outer layer of the membrane, while the inner layer remains intact. The phospholipase treatment resulted in 80%...
10.0K
Sums of Power01:22

Sums of Power

80
In definite integration, Riemann sums approximate the area under a curve by dividing it into subintervals and summing the areas of rectangles. When these approximations follow predictable numerical patterns, such as arithmetic or polynomial sequences, sum formulas offer a more efficient and accurate way to compute the result. In particular, the sum of consecutive integers, squares, and cubes plays an essential role in simplifying these calculations, especially when dealing with uniform...
80

You might also read

Related Articles

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

Sort by
Same author

Machine learning-guided discovery of poly(ethylene terephthalate)-binding modules to enhance durable whole-cell degradation.

Bioresource technology·2026
Same author

Inflammation impairs fertility and oocyte quality in systemic lupus erythematosus by triggering oxidative stress-mediated ferroptosis.

Cell death & disease·2026
Same author

Duration-dependent effects of adjuvant imatinib on recurrence-free and overall survival after resection of gastrointestinal stromal tumors: a systematic review and meta-analysis.

Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico·2026
Same author

Biodegradable Polyhydroxyalkanoates as Advanced Antimicrobial Biomaterials: A Review.

Biotechnology and bioengineering·2026
Same author

Loss of DLGAP5 impairs human and mouse oocyte maturation via disrupting the PI3K-AKT signaling axis.

Journal of ovarian research·2026
Same author

Metaphase I-arrest oocyte with agar-like zona pellucida, abandon or not abandon?

Journal of ovarian research·2026

Related Experiment Video

Updated: Feb 13, 2026

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device
07:55

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device

Published on: July 20, 2021

11.8K

Reverse electrodialysis in bilayer nanochannels: salinity gradient-driven power generation.

Rui Long1, Zhengfei Kuang, Zhichun Liu

  • 1School of Energy and Power Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China. r_long@hust.edu.cn w_liu@hust.edu.cn.

Physical Chemistry Chemical Physics : PCCP
|February 28, 2018
PubMed
Summary
This summary is machine-generated.

Nano-fluidic reverse electrodialysis (RED) shows promise for salinity gradient energy harvesting. Ion transport in bilayer nanopores is sensitive to configuration and surface charge, impacting energy conversion efficiency.

More Related Videos

Lipid Bilayer Vesicle Generation Using Microfluidic Jetting
08:35

Lipid Bilayer Vesicle Generation Using Microfluidic Jetting

Published on: February 21, 2014

15.5K
A Gradient-generating Microfluidic Device for Cell Biology
11:05

A Gradient-generating Microfluidic Device for Cell Biology

Published on: August 30, 2007

15.9K

Related Experiment Videos

Last Updated: Feb 13, 2026

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device
07:55

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device

Published on: July 20, 2021

11.8K
Lipid Bilayer Vesicle Generation Using Microfluidic Jetting
08:35

Lipid Bilayer Vesicle Generation Using Microfluidic Jetting

Published on: February 21, 2014

15.5K
A Gradient-generating Microfluidic Device for Cell Biology
11:05

A Gradient-generating Microfluidic Device for Cell Biology

Published on: August 30, 2007

15.9K

Area of Science:

  • Nanotechnology
  • Energy Harvesting
  • Electrochemistry

Background:

  • Salinity gradient energy harvesting offers a sustainable power source.
  • Reverse electrodialysis (RED) is a promising technology for this purpose.
  • Nano-fluidic systems present unique opportunities for enhanced RED performance.

Purpose of the Study:

  • To evaluate nano-fluidic reverse electrodialysis (RED) for salinity gradient energy harvesting.
  • To investigate ion transport behavior in bilayer cylindrical nanochannels with varying nanopore sizes.
  • To analyze the impact of asymmetric surface charge density and sub-pore length on RED performance.

Main Methods:

  • Numerical simulations of electrokinetic behavior in a bilayer cylindrical nanochannel.
  • Systematic investigation of ion transport parameters including transference number, osmotic current, diffusive voltage, maximum power, and efficiency.
  • Analysis under varying NaCl concentrations and asymmetric surface charge conditions.

Main Results:

  • Transference number is higher in Config. I (high concentration at larger nanopore) than Config. II.
  • Osmotic current and maximum power peak at low concentration ratios, while efficiency consistently decreases.
  • Ion transport in Config. II is influenced by both sub-nanopore charges; in Config. I, it's dominated by the downstream nanopore's charge.
  • A performance drop occurs in Config. I with high downstream surface charge due to EDL overlap.

Conclusions:

  • Nano-fluidic RED is feasible for salinity gradient energy harvesting.
  • Bilayer nanopore configuration and surface charge density significantly influence energy conversion.
  • Optimizing nanopore geometry and surface charge is crucial for maximizing RED efficiency.