Immune Capture
Immune Capture - Related Videos
01:38
What is the Immune System?
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2019
Overview The immune system comprises diverse biological structures and processes that protect the body from disease. These processes can be classified into innate and adaptive immunity. To work effectively, the immune system needs to detect pathogens by distinguishing the body’s own structures from foreign elements. If this determination fails, autoimmune diseases occur in which the immune system reacts against the body’s own tissue. The Innate Immune System Acts Fast and Non-specifically
02:14
Prey Capture Assay: A Method to Study the Prey Capture Behavior of Zebrafish Larva
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2023
This video describes the prey capture assay. The video discusses the method to study prey capture behavior of zebrafish larvae after the laser ablation of specific neurons.
11:29
Investigation of Synaptic Tagging/Capture and Cross-capture using Acute Hippocampal Slices from Rodents
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Cited by 52 •
2015
This video article describes experimental procedures to study long-term plasticity and its associative processes such as synaptic tagging, capture and cross-tagging in the CA1 pyramidal neurons using acute hippocampal slices from rodents.
11:39
T Cells Capture Bacteria by Transinfection from Dendritic Cells
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Cited by 2 •
2016
Here a protocol is presented to measure bacterial capture by CD4+ T cells which occurs during antigen presentation via transinfection from pre-infected dendritic cells (DC). We show how to perform the necessary steps: isolation of primary cells, infection of DC, DC/T cell conjugate formation, and measurement of bacterial T cell transfection.
29:02
Cell Capture Using a Microfluidic Device
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Cited by 1 •
2007
FAQs
Antibody specificity allows the capture system to distinguish a desired antigen from unrelated material in a complex sample. When the antibody binds its matching target, the resulting complex can be retained through an attached support. This selective recognition is central to enriching low-abundance cells, molecules, or particles while limiting the background carried into later analysis.
Antigen-antibody binding provides the recognition step that connects the biological target to the recovery system. The antibody identifies the target through its matching antigen, while the attached support makes the bound complex separable from the surrounding sample. Together, these functions convert molecular recognition into practical isolation for research or diagnostic measurements.
These supports provide different physical formats for recovering antibody-bound targets. Magnetic beads enable target-associated complexes to be handled through their magnetic support, whereas assay surfaces retain complexes at a defined detection surface. Other separation matrices provide an additional recovery format. The shared principle is that the support makes selective immune complexes accessible for enrichment or detection.
Immune capture concentrates a selected target from a larger mixture by using specific recognition rather than treating all sample components equally. This enrichment can make rare cells, molecules, or particles easier to analyze after unwanted background material has been reduced. In biology research, that improved access supports downstream experiments focused on targets present at low levels.
A typical workflow begins with a complex sample containing the desired target, followed by antibody recognition of the matching antigen. The immune complex is then recovered through a connected support, such as beads, an assay surface, or another matrix. The enriched or retained target can subsequently be examined in a downstream research or diagnostic assay.
Researchers may choose this approach when a target is difficult to study because it is mixed with substantial unrelated material or occurs at low abundance. Selective capture reduces background and enriches the component of interest before analysis. That advantage is relevant to cell separation, protein purification, pathogen detection, and diagnostic assays.
The method can be applied to several target categories, including cells, proteins or other molecules, and particles such as pathogens. The suitable target is identified through its antigen and then associated with a recoverable support. This range makes immune capture useful across biological investigations that require selective enrichment, isolation, or detection rather than bulk sample analysis.
In diagnostic and pathogen-focused applications, specific immune recognition helps distinguish the target from other sample components. Capturing the relevant antigen-associated material can reduce background and improve the sensitivity and specificity of the subsequent assay. The same principle supports detection even when the target is present within a complex biological sample.