Vesicle Deposition Method
Vesicle Deposition Method - Related Videos
08:53
Using the Droplet Transfer Method to Reliably Prepare Giant Unilamellar Vesicles
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Cited by 2 •
2025
This beginners' guide presents a general protocol for the preparation of Giant Unilamellar Vesicles (GUVs) via the droplet transfer method, discussing the critical steps and providing insights to help possible adjustments required for different applications, including synthetic biology and microrobotics.
11:35
Constant Pressure-controlled Extrusion Method for the Preparation of Nano-sized Lipid Vesicles
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Cited by 29 •
2012
This protocol describes an extrusion method for preparing lipid vesicles of sub-micron sizes with a high degree of homogeneity. This method uses a pressure-controlled system with controlled nitrogen flow rates for liposome preparation. The lipid preparation1,2, liposome extrusion, and size characterization will be presented herein.
09:38
Isolation and Purification of Plant Extracellular Vesicles from Arabidopsis Leaves Using an Optimized Apoplastic Wash Collection Method
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2026
This protocol describes an optimized method for isolating extracellular vesicles (EVs) from Arabidopsis thaliana leaves to support downstream molecular and functional analyses.
08:36
FM Dyes in Vesicle Recycling
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2023
FM dyes are a class of fluorescent molecules that has found important use in studying the vesicle recycling process. By virtue of a chemical structure, these molecules can insert themselves into the outer leaflet of phospholipid bilayer membranes. After membrane insertion, they are internalized into the cell via endocytosed vesicles, and released when these vesicles recycle back to the membrane. Since, these dyes fluoresce strongly in the hydrophobic environment within membranes and weakly in...
02:33
Phase Transitions: Sublimation and Deposition
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2020
Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...
FAQs
After vesicles reach a solid substrate by diffusion, they adsorb to its surface and can subsequently spread and rupture. This sequence transforms discrete vesicular material into a more continuous supported lipid bilayer. The balance between adsorption and the later spreading or rupture steps determines whether the deposited layer remains vesicle-based or develops a membrane-like interface.
Surface chemistry is a central control variable because it influences how readily vesicles adsorb and whether deposited vesicles proceed toward spreading and rupture. Consequently, changing the substrate can alter the resulting interfacial architecture even when the vesicle preparation is unchanged. This sensitivity allows surface engineering to tune membrane formation for different bioengineering interfaces.
Vesicle composition, temperature, and solution conditions each influence deposition, but they act as a set rather than as isolated parameters. Composition affects the lipid material available to form the interface, while temperature and the surrounding solution alter the conditions under which adsorption, spreading, and rupture occur. Controlling these variables supports more reproducible construction of membrane-like surfaces.
A basic workflow begins with preparing lipid vesicles, introducing them to a selected solid substrate, and allowing diffusion-driven contact and adsorption. The deposited vesicles may then spread and rupture, producing the desired supported layer. In practice, the substrate, vesicle composition, temperature, and solution conditions must be considered together because each can influence the final deposition outcome.
The vesicle deposition method creates a membrane-like surface that can serve as a controlled setting for examining interactions at an engineered interface. Because the format supports the presentation of biological ligands, researchers can also use it to investigate how membrane-associated functionality is positioned within a constructed surface. This provides a bridge between biological membrane behavior and designed materials.
In bioengineering, these deposited interfaces connect biological functionality with engineered materials. Their uses include biomimetic membranes for experimental studies, biosensor development, and drug-delivery platforms. The same surface-engineering strategy is therefore relevant both to understanding membrane interactions and to designing functional interfaces, with the selected lipid and substrate conditions helping determine the resulting platform.