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Related Concept Videos

What are Membranes?01:24

What are Membranes?

13.4K
A cell's plasma membrane demarcates the cell's borders and determines the nature of its interaction with the environment. Cells exclude certain substances, take in others, and excrete some others in controlled quantities. The plasma membrane must be flexible to allow certain cells, such as red and white blood cells, to change their shape while passing through narrow capillaries. These are the more obvious plasma membrane functions. In addition, the plasma membrane's surface carries...
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Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

630
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...
630
Membrane Domains01:18

Membrane Domains

5.5K
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...
5.5K
Mechanisms of Membrane Domain Formation00:59

Mechanisms of Membrane Domain Formation

3.0K
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...
3.0K
Single-pass Transmembrane Proteins01:25

Single-pass Transmembrane Proteins

5.0K
Integral membrane proteins are tightly associated with the cell membrane and play a crucial role in cell communication, signaling, adhesion, and transport of the molecules. Some integral membrane proteins are present only in the membrane monolayer. For example, the enzyme fatty acid amide hydrolase is present in the cytoplasmic side of the membrane monolayer. In contrast, another type of integral membrane protein, also known as a transmembrane protein, spans across the membrane. Transmembrane...
5.0K
Membrane Fluidity01:26

Membrane Fluidity

11.3K
Membrane fluidity is explained by the fluid mosaic model of the cell membrane, which describes the plasma membrane structure as a mosaic of components—including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character.
Mosaic nature of the membrane
The mosaic characteristic of the membrane helps the plasma membrane remain fluid. The integral proteins and lipids exist as separate but loosely-attached molecules in the membrane. The membrane is...
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Related Experiment Video

Updated: Jul 18, 2025

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device
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Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device

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Membranes for Energy Conversion.

V María Barragán1

  • 1Department of Structure of Matter, Thermal Physics and Electronics, Faculty of Physics, Complutense University of Madrid, Plaza de Ciencias, 1, 28040 Madrid, Spain.

Membranes
|August 25, 2023
PubMed
Summary

Global energy demand is rising, driving a critical need for sustainable energy solutions beyond finite fossil fuels. Research focuses on developing cleaner, renewable energy sources to meet future global needs.

Area of Science:

  • Energy Science
  • Environmental Science
  • Materials Science

Background:

  • Increasing global energy consumption necessitates a transition from finite fossil fuels.
  • Current energy generation heavily relies on fossil fuels, posing accessibility and environmental challenges.
  • The urgent need for sustainable energy solutions is driven by escalating demand and resource depletion.

Discussion:

  • Exploring novel materials and technologies for efficient energy conversion and storage.
  • Investigating the environmental impact and economic viability of alternative energy sources.
  • Analyzing the integration of renewable energy into existing power grids.

Key Insights:

  • Fossil fuel dependency presents long-term risks to global energy security.

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

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

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Related Experiment Videos

Last Updated: Jul 18, 2025

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Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
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Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
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  • Transitioning to sustainable energy is crucial for environmental protection and economic stability.
  • Innovation in renewable energy technologies is paramount.

    • Outlook:

    • Future energy systems will likely integrate a diverse portfolio of renewable sources.
    • Continued research aims to enhance the efficiency and affordability of clean energy.
    • Policy and technological advancements will shape the future of global energy consumption.