Bead-cell Mode
Bead-cell Mode - Related Videos
04:06
Assessing Bacteria-Host Cell Interactions Using Biomimetic Beads
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2025
Source: Stones, D. H., et al. Biomimetic Materials to Characterize Bacteria-host Interactions. J. Vis. Exp. (2015)This video demonstrates the use of bacteriomimetic beads to quantify bacterial adhesion to host epithelial cells under competitive conditions. It outlines the steps involved in treating the cells, lysing them, and plating serial dilutions to measure colony-forming units.
10:20
Mammalian Cell Encapsulation in Alginate Beads Using a Simple Stirred Vessel
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Cited by 13 •
2017
This video and manuscript describe an emulsion-based method to encapsulate mammalian cells in 0.5% to 10% alginate beads which can be produced in large batches using a simple stirred vessel. The encapsulated cells can be cultured in vitro or transplanted for cellular therapy applications.
01:07
What is a Mode?
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2023
The mode is one of the commonly used measures of a central tendency. It is defined as the most frequent value in a data set. There can be more than one mode in a data set if multiple values have the same highest frequency. For instance, suppose that the Statistics exam scores of 20 students are: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93. Here, the mode is 72, as it occurs most frequently, five times. A data set with two modes is called bimodal. For example,...
08:31
Three-dimensional Alginate-bead Culture of Human Pituitary Adenoma Cells
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Cited by 5 •
2016
Three-dimensional culture in alginate beads, due to its simplicity and reproducibility, was chosen to maintain the pituitary adenoma cells. The procedures included an initial enzymatic digestion and mechanical dissociation of the tumor tissue, and the subsequent cell suspension was encapsulated in alginate beads.
07:55
Analyzing Cell Surface Adhesion Remodeling in Response to Mechanical Tension Using Magnetic Beads
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Cited by 3 •
2017
Cell surface adhesions are central in mechanotransduction, as they transmit mechanical tension and initiate the signaling pathways involved in tissue homeostasis and development. Here, we present a protocol for dissecting the biochemical pathways that are activated in response to tension, using ligand-coated magnetic microbeads and force application to adhesion receptors.
FAQs
The beads supply a defined surface or matrix where anchorage-dependent cells can attach and grow. Because many beads can be distributed throughout the culture, they increase the effective area available for cell expansion compared with a limited vessel surface. This arrangement supports bioengineering workflows that require greater cell numbers while maintaining a controlled culture environment.
Agitation helps keep the beads distributed through the culture rather than allowing them to remain concentrated in one location. This distribution supports contact between the surrounding medium and the cells on or within the beads, promoting exchange of nutrients, oxygen, and waste products. The resulting fluid movement is therefore important for maintaining more uniform culture conditions.
In Bead-cell Mode, cells are associated with a bead-based surface or matrix instead of remaining freely suspended. This distinction is especially relevant for anchorage-dependent cells, which require a defined place to attach and expand. The bead format also creates a larger effective growth area and can make controlled expansion in a bioreactor more practical than suspension alone.
A Bead-cell Mode culture requires beads that provide the intended attachment or retention environment, a culture medium that surrounds the beads, and agitation that keeps them distributed. Researchers must consider how these elements support nutrient and oxygen delivery while allowing waste removal. Together, they establish the controlled conditions needed for consistent cell expansion.
Bead-based culture can support scalability by increasing the available growth area without relying only on the surface of a culture vessel. When the beads remain distributed in an agitated bioreactor, cells can expand across this larger area while the medium supports exchange with the culture. This combination is relevant when manufacturing processes require increased cell quantities and controlled conditions.
Applications include cell manufacturing, tissue engineering, and regenerative research. In cell manufacturing, the approach supports controlled expansion; in tissue engineering and regenerative studies, the bead-associated environment provides a defined setting for cultivating cells. Across these areas, researchers value scalable culture conditions and the potential for consistent cell performance during expansion.