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Membrane Fluidity

Membrane Fluidity

Cell membranes are composed of phospholipids, proteins, and carbohydrates loosely attached to one another through chemical interactions. Molecules are generally able to move about in the plane of the membrane, giving the membrane its flexible nature called fluidity. Two other features of the membrane contribute to membrane fluidity: the chemical structure of the phospholipids and the presence of cholesterol in the membrane.

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Related Experiment Video

Updated: Jun 11, 2025

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

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

Published on: August 16, 2018

3D Covalent Organic Framework Membranes for Molecular Separations.

Haohao Liu¹, Feng Tian¹, Bingbing Gao¹

¹Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China.

Chemistry (Weinheim an Der Bergstrasse, Germany)

|October 1, 2024

Summary

Three-dimensional covalent organic framework (3D COF) membranes offer a solution to the permeability-selectivity trade-off in membrane separation. These novel materials provide efficient and precise sieving for various applications.

Keywords:

Covalent organic framework Design strategy Molecular separation Preparation methods Three-dimensional covalent organic framework membrane

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Last Updated: Jun 11, 2025

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

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Published on: August 16, 2018

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

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Published on: July 10, 2017

Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes

Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes

Published on: December 15, 2015

Area of Science:

Materials Science
Chemical Engineering
Nanotechnology

Background:

Membrane separation is crucial in industries like drug production and water purification.
A key challenge in membrane technology is the trade-off between permeability and selectivity.
Existing research focuses on understanding and modeling synthetic membranes.

Purpose of the Study:

To investigate the synthesis and physicochemical properties of 3D COF membranes.
To highlight the design principles, fabrication methods, and applications of 3D COF membranes.
To assess the current status and future potential of 3D COF membranes in separation processes.

Main Methods:

Review of literature on the synthesis of 3D COF membranes.
Analysis of physicochemical properties, including pore structure and stability.
Examination of fabrication techniques and application examples.

Main Results:

3D COF membranes exhibit interconnected channels, tunable pore properties, and robust resilience.
These membranes demonstrate potential for overcoming the permeability-selectivity dilemma.
Various applications are being explored, showcasing their versatility.

Conclusions:

3D COF membranes represent a significant advancement in synthetic membrane technology.
Their unique structure and properties offer a promising route to highly efficient separation.
Further research is needed to fully realize their potential in shaping future membrane processes.