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

Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

348
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
348

You might also read

Related Articles

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

Sort by
Same author

An Advanced Pore Flow Model for Uncoding Micropollutant Transport in Nanofiltration Membranes.

Environmental science & technology·2025
Same author

Enhancing Ion Selectivity of Nanofiltration Membranes via Heterogeneous Charge Distribution.

Environmental science & technology·2024
Same author

Biochar-Assisted Catalytic Pyrolysis of Oily Sludge to Attain Harmless Disposal and Residue Utilization for Soil Reclamation.

Environmental science & technology·2023
Same author

MXene Composite Membranes with Enhanced Ion Transport and Regulated Ion Selectivity.

Environmental science & technology·2022
Same author

Capillary-Assisted Fabrication of Thin-Film Nanocomposite Membranes for Improved Solute-Solute Separation.

Environmental science & technology·2022
Same author

Simultaneous Nitrite Resourcing and Mercury Ion Removal Using MXene-Anchored Goethite Heterogeneous Fenton Composite.

Environmental science & technology·2022
Same journal

Tuning Piezoelectricity and Pyroelectricity in Poly(vinylidene fluoride) through Ionic Liquid Anion-Size Directed Polymorph and Interface Engineering.

ACS applied materials & interfaces·2026
Same journal

Adsorption-Induced Ferroelectric Symmetry Breaking in Two-Dimensional CuInP<sub>2</sub>S<sub>6</sub>.

ACS applied materials & interfaces·2026
Same journal

Nanocomplexes Integrated into a Polymeric Bilayer Film Enhance Buccal Permeation of a GLP-1 Peptide Analogue.

ACS applied materials & interfaces·2026
Same journal

Correction to "Multienzyme Active Nanozyme for Efficient Sepsis Therapy through Modulating Immune and Inflammation Inhibition".

ACS applied materials & interfaces·2026
Same journal

A Programmable Perfusion Platform with Temperature Monitoring Achieves Multiscale Cryopreservation.

ACS applied materials & interfaces·2026
Same journal

Oral Delivery of Mesenchymal Stem Cell-Derived Extracellular Vesicles To Treat Intestinal Inflammation.

ACS applied materials & interfaces·2026
See all related articles

Related Experiment Video

Updated: May 23, 2025

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
07:51

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

3.2K

Microstructure-Dependent Ion Selectivity in Graphene Oxide-Based Membranes.

Jing Ren1, Xinran Chen1, Xin Tong1

  • 1State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, Tongji Advanced Membrane Technology Center, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.

ACS Applied Materials & Interfaces
|May 22, 2025
PubMed
Summary
This summary is machine-generated.

Large structural defects in graphene oxide (GO) membranes significantly impact ion transport and selectivity, often bypassing intended nanochannels. Understanding these defects is key to designing advanced GO membranes for precise separations.

Keywords:
defectsgraphene oxide membraneion selectivitymicrostructuretortuosity

More Related Videos

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
07:45

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

9.9K
Graphene Enclosure of Chemically Fixed Mammalian Cells for Liquid-Phase Electron Microscopy
10:12

Graphene Enclosure of Chemically Fixed Mammalian Cells for Liquid-Phase Electron Microscopy

Published on: September 21, 2020

7.0K

Related Experiment Videos

Last Updated: May 23, 2025

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
07:51

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

3.2K
Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
07:45

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

9.9K
Graphene Enclosure of Chemically Fixed Mammalian Cells for Liquid-Phase Electron Microscopy
10:12

Graphene Enclosure of Chemically Fixed Mammalian Cells for Liquid-Phase Electron Microscopy

Published on: September 21, 2020

7.0K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemical Engineering

Background:

  • Graphene oxide (GO) membranes offer potential for precise separations due to their layered structure.
  • While water transport is understood, ion transport mechanisms and selectivity in GO membranes are unclear.

Purpose of the Study:

  • To investigate the role of nanoscale pore architecture, including defects, in ion transport and selectivity of GO membranes.
  • To elucidate the influence of cross-linking on GO membrane structure and ion transport properties.

Main Methods:

  • Fabrication of pristine and cross-linked GO membranes using vacuum filtration.
  • Utilized low-field nuclear magnetic resonance (LF-NMR) to analyze nanoscale pore structures.
  • Conducted ion diffusion experiments and molecular dynamics simulations.

Main Results:

  • Cross-linking GO membranes created more ordered nanochannels and reduced defect sizes.
  • Large structural defects were found to be the dominant pathway for ion transport, reducing selectivity.
  • Intrinsic pinholes were too small to significantly affect ion transport.

Conclusions:

  • Membrane microstructure, particularly large defects, critically influences ion transport tortuosity and selectivity.
  • Molecular dynamics simulations highlighted the importance of interlayer spacing, ion properties, and membrane interactions.
  • Experimental results emphasized the dominant role of structural defects over intrinsic nanochannels in ion transport, guiding future membrane design.