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Asymmetric Lipid Bilayer01:35

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Biological membranes show uneven distribution of different types of lipids in the inner and outer layers, resulting in transverse asymmetric membranes. The treatment of the erythrocyte membrane with the enzyme phospholipase confirmed the asymmetric nature of the lipid bilayer. The enzyme hydrolyzes lipids into fatty acids and hydrophilic groups. The phospholipase acts only on the outer layer of the membrane, while the inner layer remains intact. The phospholipase treatment resulted in 80%...
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Membrane Remodeling of Giant Vesicles in Response to Localized Calcium Ion Gradients
08:15

Membrane Remodeling of Giant Vesicles in Response to Localized Calcium Ion Gradients

Published on: July 16, 2018

Vesicular phospholipid gels.

Martin Brandl1

  • 1Department of Physics and Chemistry, University of Southern Denmark, Odense M, Denmark.

Methods in Molecular Biology (Clifton, N.J.)
|January 15, 2010
PubMed
Summary
This summary is machine-generated.

Vesicular phospholipid gels (VPGs) offer sustained drug release for implantation or intravenous injection. This study details VPG formation and drug loading methods for enhanced drug delivery applications.

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Area of Science:

  • Pharmaceutical Sciences
  • Materials Science
  • Biotechnology

Background:

  • Vesicular phospholipid gels (VPGs) are concentrated phospholipid dispersions with vesicular morphology.
  • VPGs are crucial for sustained drug release applications, including implantation and intravenous (i.v.) injection via SUV-dispersions.

Purpose of the Study:

  • To describe the formation of homogeneous lipid and lipid/drug blends.
  • To detail the preparation of VPGs using high-pressure homogenization.
  • To present remote loading techniques, specifically "passive loading", for VPGs.

Main Methods:

  • Preparation of homogeneous lipid and lipid/drug blends.
  • High-pressure homogenization for VPG formation.
  • Remote loading via "passive loading" technique.

Main Results:

  • Successful formation of homogeneous lipid and lipid/drug blends.
  • Efficient preparation of VPGs through high-pressure homogenization.
  • Demonstration of "passive loading" for drug incorporation into VPGs.

Conclusions:

  • The study successfully outlines methods for creating homogeneous lipid blends and preparing VPGs.
  • High-pressure homogenization and "passive loading" are effective techniques for VPG preparation and drug incorporation.
  • These advancements hold promise for improved drug delivery systems.