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Related Concept Videos

Mechanisms of Membrane Domain Formation00:59

Mechanisms of Membrane Domain Formation

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 cytoskeletal...
Biosynthesis of Lipids01:29

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Microbial membranes exhibit remarkable diversity in lipid composition, reflecting evolutionary adaptations to various environmental conditions. The three domains of life—Bacteria, Archaea, and Eukarya—synthesize membrane lipids through distinct biosynthetic pathways, leading to fundamental structural differences that impact membrane stability, function, and adaptability.Fatty Acid-Based Lipids in Bacteria and EukaryaBacteria and eukaryotes share a common fatty acid biosynthesis pathway, which...
Structure of Lipids03:38

Structure of Lipids

Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic birds and...
Structure of Lipids03:38

Structure of Lipids

Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic birds and...
Structure of Lipids03:38

Structure of Lipids

Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic birds and...

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Related Experiment Video

Updated: Jun 28, 2026

Microfluidic Production of Lysolipid-Containing Temperature-Sensitive Liposomes
09:51

Microfluidic Production of Lysolipid-Containing Temperature-Sensitive Liposomes

Published on: March 3, 2020

Massively parallel production of lipid microstructures.

Jonathan West1, Andreas Manz, Petra S Dittrich

  • 1Institute for Analytical Sciences, Bunsen-Kirchhoff-Str. 11, D-44139, Dortmund, Germany.

Lab on a Chip
|October 23, 2008
PubMed
Summary

This study presents a low-cost microfluidic device for creating lipid tubules and vesicles. The system utilizes a microporous membrane and either hydrodynamic drag or electrokinetic flow for controlled production.

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Area of Science:

  • Biotechnology
  • Materials Science
  • Chemical Engineering

Background:

  • Lipid-based nanostructures are crucial for drug delivery and biomimetic systems.
  • Efficient and scalable methods for producing uniform lipid tubules and vesicles are needed.

Purpose of the Study:

  • To develop a simple, inexpensive, and versatile microfluidic system for producing lipid tubules and vesicles.
  • To demonstrate control over lipid nanostructure morphology and production rate.

Main Methods:

  • A microfluidic system featuring a central microporous membrane to interface lipid films with aqueous solutions.
  • Utilized hydrodynamic drag for parallel elongation of lipid tubules.
  • Employed electrokinetic operation for rapid, continuous vesicle production.

Main Results:

  • Achieved uniform lipid tubules with diameters of 1.5 +/- 0.5 micrometers using hydrodynamic drag.
  • Demonstrated rapid and continuous production of vast numbers of lipid vesicles with diameters ranging from 1 to 3 micrometers via electrokinetic flow.

Conclusions:

  • The developed microfluidic system offers a simple and cost-effective approach for generating diverse lipid nanostructures.
  • The system's flexibility allows for tailored production of lipid tubules and vesicles for various applications.