Uv-activated Adhesive Chamber
Uv-activated Adhesive Chamber - Related Videos
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Human Neutrophil Flow Chamber Adhesion Assay
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A method of quantitating neutrophil adhesion is reported. This method creates a dynamic flow environment similar to that encountered in a blood vessel. It allows the investigation of neutrophil adhesion to either purified adhesion molecules (ligand) or endothelial cell substrate (HUVEC) in a context similar to the in vivo environment with sheer stress.
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Micro-Parallel Plate Flow Chamber Model for Studying Bacterial Adhesion to Human Endothelial Cells
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Source: Claes, J., et al, In Vitro and In Vivo Model to Study Bacterial Adhesion to the Vessel Wall Under Flow Conditions. J. Vis. Exp. (2015).This video demonstrates a method for studying host-pathogen interactions using a micro-parallel plate flow chamber seeded with human primary endothelial cells. Following endothelial cell activation by an ionophore and perfusion with fluorescently labeled bacteria, the cells release von Willebrand factor (VWF), which binds bacterial adhesins under shear...
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Assay of Adhesion Under Shear Stress for the Study of T Lymphocyte-Adhesion Molecule Interactions
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Adhesion
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2019
Adhesion occurs when one type of molecule is attracted to a different molecule. Water exhibits adhesive properties in the presence of polar surfaces, such as glass or cellulose in plants. For instance, when water is poured into a glass, the positively charged hydrogen molecules of water are more attracted to the negatively charged oxygen molecules in the silica than to the oxygen in neighboring water molecules. Capillary action is a result of water’s adhesive tendencies. When a narrow glass...
FAQs
Ultraviolet exposure converts the adhesive from a workable material into a solid structure that secures the chamber components. This timing allows the enclosure to be positioned before fixation occurs, rather than requiring the assembly to be rigid from the beginning. The result is a sealed space whose geometry can be established around the biological sample or reagent.
Localized curing allows fixation to occur where the chamber is being assembled while limiting unnecessary disturbance to nearby sample regions. The rapid transition from workable adhesive to a secured structure can help preserve the intended arrangement of delicate specimens or reagents. This supports more consistent preparation when the experiment depends on a defined sample area.
A sealed chamber establishes a defined internal environment around the specimen or reagent. That enclosure can support containment and controlled access during handling or observation, while keeping the experimental space organized for microscopy or surface-based assays. By standardizing the area in which the sample is examined, the chamber can contribute to reproducible preparation and analysis.
Its value comes from combining workable assembly with rapid, localized fixation. Researchers can arrange chamber components around a biological sample or reagent, then secure that arrangement after the desired configuration is established. This combination is relevant when experiments require a sealed space, access to a defined specimen region, or observation with limited disturbance during preparation.
Assembly begins by arranging the chamber components around the biological sample or reagent while the adhesive remains workable. Once the intended enclosure and sample position are established, ultraviolet light is applied to cure the adhesive and secure the components. The completed chamber can then provide the sealed space needed for handling, observation, or an assay.
Preparation requires chamber components, a light-curable adhesive, and an ultraviolet light source for fixation. The biological material may be a specimen or reagent intended for handling, microscopy, or a surface-based assay. Together, these elements allow researchers to form the enclosure, cure it after positioning, and maintain a defined internal space for the experiment.
Researchers may choose it when a study requires sample containment, microscopy, surface-based assays, or another setup with controlled access to a specimen or reagent. The approach is especially relevant when rapid fabrication and reduced disturbance during preparation matter. Its sealed configuration can support consistent handling and analysis across experiments using a defined sample space.
The chambers can provide a secured, defined internal environment for biological samples or reagents and support direct observation or surface-based analysis. Their rapid curing can simplify device fabrication, while the localized fixation may reduce disruption during preparation. These features can improve the reproducibility of sample setup and help maintain a consistent configuration for subsequent analysis.