Lipid Bilayer Vesicle Imaging
Lipid Bilayer Vesicle Imaging - Related Videos
08:35
Lipid Bilayer Vesicle Generation Using Microfluidic Jetting
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Cited by 16 •
2014
Microfluidic jetting against a droplet interface lipid bilayer provides a reliable way to generate vesicles with control over membrane asymmetry, incorporation of transmembrane proteins, and encapsulation of material. This technique can be applied to study a variety of biological systems where compartmentalized biomolecules are desired.
10:15
Atomic Force Microscopy Imaging and Force Spectroscopy of Supported Lipid Bilayers
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Cited by 34 •
2015
We describe a protocol for preparation of supported lipid bilayers and its characterization using atomic force microscopy and force spectroscopy.
03:36
Dissipative Microgravimetry Technique to Study Protein-Lipid Bilayer Interaction
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2025
This video demonstrates a dissipative microgravimetry technique to investigate the binding of proteins to lipid bilayers. Small unilamellar vesicles are added to coat the surface of the quartz sensor of a microbalance. Utilizing the calcium ion-dependent binding of the target phospholipid-binding protein to the bilayer, changes in the oscillation frequency of the sensor and the dissipation of the oscillation are monitored to determine the nature of the protein-lipid bilayer binding.
08:39
Tracking Single Proteins in Lipid Bilayers Using Fluorescence Microscopy
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2025
This article provides a detailed description of how to create samples for single-protein tracking in solid-supported lipid bilayers. It also explains a straightforward fluorescence microscope with single-molecule sensitivity and a fast frame rate. Finally, we outline the procedure for extracting single-protein trajectories.
11:45
Imaging of HIV-1 Envelope-induced Virological Synapse and Signaling on Synthetic Lipid Bilayers
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Cited by 4 •
2012
This article describes a method to visualize formation of an HIV-1 envelope-induced virological synapse on glass supported planar bilayers by total internal reflection fluorescence (TIRF) microscopy. The method can also be combined with immunofluorescence staining to detect activation and redistribution of signaling molecules that occur during HIV-1 envelope-induced virological synapse formation.
FAQs
Fluorescent lipids and membrane-binding probes make vesicle boundaries or associated membranes detectable during imaging. Fluorescence microscopy provides visual measurements, while confocal microscopy allows examination of labeled compartments in greater detail. The choice of label and imaging mode therefore affects how clearly researchers can assess membrane organization and associated cargo.
Changes in size and shape can indicate how vesicle structure responds to experimental conditions, whereas fusion and leakage report different forms of membrane behavior. Cargo distribution adds a spatial readout of what remains enclosed or becomes redistributed. Together, these measurements connect visible membrane changes with transport and release-related performance.
Defined conditions make it possible to compare vesicle behavior across experiments rather than attributing differences to uncontrolled variation. Under the same planned conditions, imaging can reveal whether a system maintains its structure, undergoes fusion, or leaks contents. This controlled comparison is especially useful when evaluating membrane interactions relevant to delivery systems.
An imaging workflow begins by labeling the vesicle membrane with fluorescent lipids or using probes that bind the membrane. The labeled compartments are then examined with fluorescence or confocal microscopy, and images are analyzed for size, shape, fusion, leakage, and cargo distribution. Keeping conditions defined supports consistent interpretation across samples.
By showing whether vesicles retain their structure and cargo or exhibit leakage and fusion, imaging provides evidence about delivery-system behavior before or during interaction with cells. These readouts can be related to therapeutic release and delivery efficiency. In cancer research, that connection helps guide the design of liposome systems intended to perform more effectively.
Lipid bilayer vesicle imaging can visualize how nanoparticle-membrane interactions affect vesicle structure, cargo distribution, or membrane behavior. These observations provide a bridge between interaction at the membrane and eventual uptake by tumor cells. Researchers can use that relationship to evaluate how membrane properties influence delivery and refine cancer-targeting systems.