Anti-biotin Microbeads
Anti-biotin Microbeads - Related Videos
05:54
Microbead Implantation in the Zebrafish Embryo
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Cited by 8 •
2015
The zebrafish is an excellent model system for genetic and developmental studies. Bead implantation is a valuable tissue manipulation technique that can be used to interrogate developmental mechanisms by introducing alterations in local cellular environments. This protocol describes how to perform microbead implantation in the zebrafish embryo.
03:08
Fabrication of Amyloid-Beta-Releasing Polymer Microbeads for Modeling Alzheimer's Disease
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2025
This video demonstrates a method for fabricating polymer microbeads that encapsulate neurotoxic amyloid-beta-secreting cells. The cell-polymer suspension is processed through a microbead fabrication device, with polymer gelation achieved via calcium cross-linking, forming spherical microbeads around the cells. The polymer allows cell proliferation while allowing controlled, long-term amyloid-beta release, simulating its accumulation in Alzheimer's disease.
05:16
Assessing the Internalization of Target Surface Proteins Using a Biotin Derivative
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2025
This video demonstrates a method to assess target protein internalization in the mouse cortical astrocytes using biotinylation, followed by cell lysis, streptavidin-based protein extraction, denaturation, and Western blot analysis to confirm successful internalization.
16:33
Detection of Protein Palmitoylation in Cultured Hippocampal Neurons by Immunoprecipitation and Acyl-Biotin Exchange (ABE)
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Cited by 108 •
2013
The reversible addition of palmitate to proteins is an important regulator of intracellular protein trafficking. This is of particular interest in neurons where many synaptic proteins are palmitoylated. We utilize a simple biochemical method to detect palmitoylated proteins in cultured neurons, which can be adapted for multiple cell types and tissues.
08:14
Rapid Magnetic-microbead Method for Efficient Purification of Low-density Neutrophils
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Cited by 1 •
2025
Low-density neutrophils (LDN) increase significantly in several diseases. LDN are usually isolated through cell sorting. We present a practical method to obtain pure and viable LDN. After density-gradient centrifugation of peripheral blood, cells are incubated with magnetic microbeads, and then LDN are separated through magnetic columns.
FAQs
The anti-biotin antibody on each particle recognizes biotin attached to a primary antibody or another labeling reagent. This creates an indirect link between the microbead and the selected cell or biomolecule, rather than requiring the particle to recognize the target itself. As a result, researchers can direct separation toward different targets by changing the biotin-conjugated labeling reagent.
Biotin-labeled material binds the antibody-coated particles and is retained when the sample passes through a magnetic column. Untagged material does not receive the same bead-mediated retention and can be washed away. The retained fraction is then eluted for collection, allowing the workflow to separate a selected population from surrounding sample components.
The same binding principle can produce different sample outputs depending on which population receives the biotin label. Labeling a desired tumor, immune, or cancer-associated subset supports its retention and recovery, whereas labeling an unwanted population allows that fraction to be removed from the sample. This flexibility helps researchers prepare samples for downstream analysis of the remaining or selected cells.
A typical workflow first applies a biotin-conjugated primary antibody or other labeling reagent to the sample. Anti-biotin microbeads then bind the biotin-tagged targets, and the mixture is loaded onto a magnetic column. After untagged material is washed away, the retained fraction is eluted. The separated cells or biomolecules can then undergo subsequent analysis.
Cancer researchers can use the approach when they need to enrich tumor cells, remove unwanted populations, or prepare immune and cancer-associated subsets. These separated fractions may be directed to flow cytometry, molecular profiling, or functional assays. By reducing unwanted material before analysis, the method supports investigations that depend on distinguishing cellular populations within complex cancer samples.
Greater sample purity can make measurements more representative of the selected tumor or immune-associated population. This is particularly relevant when researchers examine tumor heterogeneity or interactions between cancer and other cellular populations. Cleaner fractions can support more reliable flow-cytometric, molecular, and functional analyses, although the interpretation still depends on which population was labeled and recovered.