Fluorescent Antibody Staining
Fluorescent Antibody Staining - Related Videos
10:13
Method for Whole Mount Antibody Staining in Chick
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Cited by 3 •
2009
This video demonstrates whole mount immunohistochemistry, a method by which the spatial and temporal expression pattern of an antigen can be visualized in young chick embryos. This method was originally introduced by Jane Dodd and Tom Jessell.
13:10
Antibody Staining in C. Elegans Using "Freeze-Cracking"
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Cited by 34 •
2013
"Freeze-cracking," a method for exposing the inner tissues of the nematode C. elegans to antibodies for protein localization, is demonstrated.
11:27
Immunohistochemistry on Paraffin Sections of Mouse Epidermis Using Fluorescent Antibodies
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Cited by 2 •
2008
We describe a reliable method for immunolocalization within the epidermis modified for both frozen and paraffin sections that we use very routinely in our laboratory.
06:48
Antibody Labeling with Fluorescent Dyes Using Magnetic Protein A and Protein G Beads
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Cited by 3 •
2016
The on-bead method for labeling antibodies with small molecules enables labeling of a small amount of antibodies directly from cell media. This method is compatible with amine and thiol chemistry, and can handle multiple samples in parallel, manually or using automated platforms.
03:45
Antibody Staining of Scale Melanocytes: A Technique to Detect Transcription Factors Expressed in Dorsal Scale-associated Melanocytes of Zebrafish Models
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2023
This video describes the antibody staining method to detect transcription factors expression in dorsal scale-associated melanocytes of zebrafish models. This immunostaining technique helps specifically identify the melanocyte-inducing transfection factor-A in the transgenic zebrafish.
FAQs
After the antibody binds its matching antigen, illumination at an appropriate excitation wavelength causes the attached fluorescent dye to emit light. The resulting signal marks where the antigen is located within a cell, tissue, or microorganism. Fluorescence microscopy captures this emitted light, allowing investigators to connect antigen recognition with spatial distribution.
Direct and indirect formats provide alternative ways to organize antibody-based detection. Both rely on antigen-antibody recognition, but their labeling arrangements can differ, influencing how the fluorescent signal is generated and observed. Selecting between them helps researchers adapt staining to the target and the type of visualization required in immunology or infection studies.
Specific recognition determines which cellular, tissue, or microbial structure receives the fluorescent label. This selectivity allows the observed signal to be interpreted as evidence of a particular antigen rather than general illumination. In practice, it supports pathogen identification, immune-cell characterization, and mapping of protein distribution in biologically complex samples.
The method can show whether selected antigens are present and where they are distributed within cells, tissues, or microorganisms. In infection research, those observations can help identify pathogens and examine host-pathogen interactions. In immunology, staining supports characterization of immune-cell populations and assessment of cellular responses linked to immune mechanisms.
A typical workflow applies an antibody carrying, or used with, a fluorescent dye to a biological sample so antigen-antibody binding can occur. The sample is then illuminated at a suitable excitation wavelength and examined by fluorescence microscopy. Image analysis can subsequently organize the observations and support qualitative or quantitative interpretation.
Researchers can apply it when they need visual evidence of specific antigens in cells, tissues, or microorganisms. The technique supports pathogen detection, immune-cell profiling, protein localization, host-pathogen studies, and investigation of cellular responses. It can also contribute to diagnostic research and to evaluating mechanisms that shape immune activity.