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

Ligand-gated Ion Channels01:19

Ligand-gated Ion Channels

12.0K
Ligand-gated ion channels are transmembrane proteins with a channel for ions to pass through and a binding site for a ligand. The channel opens only when a ligand attaches to the binding site.
Three Subfamilies of Ligand-gated Ion Channels
Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that...
12.0K
Ligand-Gated Ion Channel Receptor: Gating Mechanism01:30

Ligand-Gated Ion Channel Receptor: Gating Mechanism

2.0K
Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
2.0K
Channel Rhodopsins01:11

Channel Rhodopsins

2.5K
Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
2.5K
Voltage-gated Ion Channels01:26

Voltage-gated Ion Channels

7.8K
Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several...
7.8K

You might also read

Related Articles

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

Sort by
Same author

Generative design of programmable asymmetric β-barrel nanopores.

bioRxiv : the preprint server for biology·2026
Same author

Three-Dimensional Atomic Scale Insights into Unconventional Fragmentation of Two-Dimensional ReS<sub>2</sub> Monolayers into Molecular Clusters.

ACS nano·2026
Same author

Tuning Ion Dynamics and Structure via Polyzwitterionic Chemistry and Architecture in Polymer-Supported Ionic Liquid Electrolytes.

The journal of physical chemistry. B·2026
Same author

Membranes for Lithium Recovery From Conventional and Unconventional Sources.

ACS ES&T engineering·2026
Same author

Inducing nonlinear conductance and emergent memristance in open pores using blockers.

Faraday discussions·2026
Same author

Influence of Rigidity-Hydration Coupling on Size-Dependent Diffusion in Hydrated Polymer Membranes.

ACS macro letters·2026

Related Experiment Video

Updated: May 16, 2025

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies
09:38

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies

Published on: January 3, 2018

7.1K

Lanthanide-Selective Artificial Channels.

Harekrushna Behera1,2, Tyler J Duncan1, Laxmicharan Samineni1,2

  • 1McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States.

ACS Nano
|April 4, 2025
PubMed
Summary

This study introduces novel supramolecular membrane channels for efficient lanthanide separation, offering high selectivity for middle lanthanides like europium and terbium. This breakthrough promises greener and more cost-effective rare earth element purification and recycling.

Keywords:
ion channelslanthanide–lanthanide separationsnanoporespillar[5]arenerare earth elements

More Related Videos

Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging
13:21

Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging

Published on: July 21, 2011

14.9K
Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
13:51

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

15.2K

Related Experiment Videos

Last Updated: May 16, 2025

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies
09:38

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies

Published on: January 3, 2018

7.1K
Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging
13:21

Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging

Published on: July 21, 2011

14.9K
Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
13:51

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

15.2K

Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Separation Science

Background:

  • Lanthanides are critical for modern technologies but their purification is environmentally taxing due to inefficient separation methods.
  • Current methods like solvent extraction are costly and generate significant waste, necessitating advanced separation solutions.

Purpose of the Study:

  • To develop a novel supramolecular membrane channel for highly selective lanthanide ion separation.
  • To evaluate the efficiency and selectivity of these channels for middle lanthanides (Eu, Tb) against other metal ions and lanthanides.

Main Methods:

  • Fabrication of supramolecular membrane channels using pillar[5]arene scaffolds with diphenylphosphine oxide (DPP) ligands.
  • Transport experiments to measure ion selectivity across the membrane channels.
  • Molecular dynamics simulations to elucidate the mechanism of ion selectivity.

Main Results:

  • The membrane channels exhibited high transport selectivity for middle lanthanides (Eu, Tb) over monovalent ions (K+, Na+) and common divalent ions (Ca2+, Mg2+).
  • Exceptional lanthanide-lanthanide selectivity was achieved, with Tb3+/La3+ selectivity of ~140 and Eu3+/Nd3+ selectivity of ~17.
  • Selectivities significantly surpassed those obtained with traditional solvent extraction techniques.

Conclusions:

  • The developed supramolecular membrane channels offer a highly selective and efficient method for lanthanide separation.
  • Water-mediated interactions within the channel are key to the observed high selectivity, as indicated by simulations.
  • This approach holds potential for improving the sustainability and cost-effectiveness of lanthanide purification and recycling.