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

Overview of Cell-Matrix Interactions01:24

Overview of Cell-Matrix Interactions

8.5K
The extracellular matrix or ECM holds cells together to form a tissue and allows the cells within the tissue to communicate. ECM comprises proteins such as fibronectin, collagen, laminin, etc. The most abundant protein in this space is collagen. Collagen fibers are interwoven with carbohydrate-containing protein molecules called proteoglycans. ECM allows cell migration and provides a structural scaffold at cell adhesion that anchors the cell when the extracellular matrix proteins interact with...
8.5K
Fluid Mosaic Model01:19

Fluid Mosaic Model

14.9K
Scientists identified the plasma membrane in the 1890s and its principal chemical components (lipids and proteins) by 1915. The model for plasma membrane structure, proposed in 1935 by Hugh Davson and James Danielli, was the first model to be widely accepted in the scientific community. The model was based on the plasma membrane's "railroad track" appearance in early electron micrographs. Davson and Danielli theorized that the plasma membrane's structure resembled a sandwich...
14.9K
What are Membranes?01:54

What are Membranes?

184.2K
A key characteristic of life is the ability to separate the external environment from the internal space. To do this, cells have evolved semi-permeable membranes that regulate the passage of biological molecules. Additionally, the cell membrane defines a cell’s shape and interactions with the external environment. Eukaryotic cell membranes also serve to compartmentalize the internal space into organelles, including the endomembrane structures of the nucleus, endoplasmic reticulum and...
184.2K
Mechanisms of Membrane Domain Formation00:59

Mechanisms of Membrane Domain Formation

3.6K
Different physical properties of lipids and proteins allow them to localize and form distinct islands or domains in the membrane. Some membrane domains are formed due to protein-protein interactions, whereas others are formed due to the presence of specific lipids such as sphingolipids and sterols—for example, large proteins, such as bacteriorhodopsin, aggregate and create distinct domains.
Another mechanism for membrane domain formation involves membrane proteins interacting with...
3.6K
Membrane Asymmetry Regulating Transporters01:19

Membrane Asymmetry Regulating Transporters

6.6K
Enzymes like flippase, floppase, and scramblase transfer phospholipids from one layer to another in the membrane, thereby affecting membrane asymmetry.
Flippase
Eukaryotic flippases are type-IV P-type ATPases or P4-ATPases belonging to P-type ATPase family proteins that are membrane-bound pumps involved in the ATP-mediated transport of ions and molecules across the membrane. Flippases flip specific phospholipids from the outer to the inner leaflet of a membrane. All P4-ATPases have one...
6.6K
Membrane Domains01:18

Membrane Domains

6.7K
The membrane domains concentrate specific lipids and proteins at one place within the membrane, which helps in cell signaling, adhesion, and other critical cellular processes. These domains can differ in size, composition, function, and lifespan.
Protein Domains
The membrane comprises a group of distinct proteins responsible for carrying out a cell's specific function. For example, the plasma membrane of the human sperm, or a single germ cell, contains a unique set of proteins in the...
6.7K

You might also read

Related Articles

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

Sort by
Same author

Engineered <i>Escherichia coli</i> Modified with Carbon Quantum Dots as a High-Performance Cathode Catalyst for Microbial Fuel Cells.

Molecules (Basel, Switzerland)·2026
Same author

Stabilizing Dual-Band Redox Process via Bidirectional Regulation Term in High-Voltage Sodium Layered Oxide Cathodes.

Angewandte Chemie (International ed. in English)·2026
Same author

A Facile Immersion Strategy for Molybdate-Modified Co/Co(OH)<sub>2</sub>@Cu Nanowires as High-Efficiency and Durable Electrocatalysts for Alkaline Hydrogen Evolution.

Chemistry, an Asian journal·2026
Same author

Decoupling-Facilitated Mass-Charge Transfer via Dual-Interface Engineering for Efficient CO<sub>2</sub> Electrolysis.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Self-Powered Piezoelectric Nanofibrous Hydrogel for Synergistic Electro-Pharmacological Therapy of Chronic Wounds.

Advanced healthcare materials·2026
Same author

Iodide Anion Anchoring by Silver Nanoparticles Enables Shuttle-Free Zinc-Iodine Batteries.

Angewandte Chemie (International ed. in English)·2026

Related Experiment Video

Updated: Dec 1, 2025

Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface
06:28

Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface

Published on: May 1, 2020

3.9K

Analogous Mixed Matrix Membranes with Self-Assembled Interface Pathways.

Haozhen Dou1, Mi Xu1,2, Baoyu Wang3

  • 1Department of Chemical Engineering, University of Waterloo, 200 University Ave. W, Waterloo, Ontario, N2L 3G1, Canada.

Angewandte Chemie (International Ed. in English)
|November 10, 2020
PubMed
Summary
This summary is machine-generated.

This study introduces analogous mixed matrix membranes (AMMMs) using reactive ionic liquid and graphene quantum dots for efficient ethylene/ethane separation. The novel membranes significantly enhance permeability and selectivity for sub-angstrom gas separations.

Keywords:
graphene quantum dotsinterfacial pathwaysionic liquidsmixed matrix membranesmolecular-level hybridization

More Related Videos

Formation of Biomembrane Microarrays with a Squeegee-based Assembly Method
07:56

Formation of Biomembrane Microarrays with a Squeegee-based Assembly Method

Published on: May 8, 2014

14.0K
Assembly and Characterization of Biomolecular Memristors Consisting of Ion Channel-doped Lipid Membranes
08:07

Assembly and Characterization of Biomolecular Memristors Consisting of Ion Channel-doped Lipid Membranes

Published on: March 9, 2019

8.2K

Related Experiment Videos

Last Updated: Dec 1, 2025

Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface
06:28

Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface

Published on: May 1, 2020

3.9K
Formation of Biomembrane Microarrays with a Squeegee-based Assembly Method
07:56

Formation of Biomembrane Microarrays with a Squeegee-based Assembly Method

Published on: May 8, 2014

14.0K
Assembly and Characterization of Biomolecular Memristors Consisting of Ion Channel-doped Lipid Membranes
08:07

Assembly and Characterization of Biomolecular Memristors Consisting of Ion Channel-doped Lipid Membranes

Published on: March 9, 2019

8.2K

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Nanotechnology

Background:

  • Sub-angstrom scale gas separations are crucial but challenging for industrial applications.
  • Mixed matrix membranes (MMMs) offer potential but face issues with interface compatibility and performance.

Purpose of the Study:

  • To develop novel analogous mixed matrix membranes (AMMMs) for efficient sub-angstrom scale ethylene/ethane separation.
  • To investigate the role of graphene quantum dots (GQDs) and reactive ionic liquids (RILs) in enhancing membrane performance.

Main Methods:

  • Fabrication of GQD/RIL AMMMs through molecular-level hybridization.
  • Characterization of membrane structure and performance for ethylene/ethane separation.
  • Visualization of interfacial pathway structure and elucidation of self-assembly mechanism.

Main Results:

  • GQD/RIL AMMMs with only 3.5 wt% GQDs exhibited a 3.1-fold increase in ethylene permeability.
  • Ethylene/ethane selectivity was boosted by nearly 60%, reaching up to 99.5.
  • Non-covalent interactions between RIL and GQDs induced self-assembly of superfast interfacial pathways.

Conclusions:

  • The developed GQD/RIL AMMMs significantly outperform existing membranes for ethylene/ethane separation.
  • The self-assembly mechanism of interfacial pathways is key to achieving high permeability and selectivity.
  • This approach offers a promising strategy for advanced gas separation membrane design.