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Crossed immunoelectrophoresis is also called two-dimensional quantitative immunoelectrophoresis ad modum Clarke and Freeman or ad modum Laurell. In this method the proteins are first separated during the first dimension electrophoresis, then instead of the diffusion towards the antibodies, the proteins are electrophoresed into an antibody ...
Antigen-antibody interaction, or antigen-antibody reaction, is a specific chemical interaction between antibodies produced by B cells of the white blood cells and antigens during immune reaction.
Plasmodium Glutamate dehydrogenase (pGluDH) separated by counterimmunoelectrophoresis [1]. Counterimmunoelectrophoresis is a laboratory technique used to evaluate the binding of an antibody to its antigen, it is similar to immunodiffusion, but with the addition of an applied electrical field across the diffusion medium, usually an agar or polyacrylamide gel.
Immunofixation as immunoelectrophoresis, takes place in two steps: The first step is identical for both techniques. It consists in depositing the immunoglobulins contained in the serum or urine on a gel and then separating the immunoglobulins according to their electrophoretic mobility by making them migrate under the effect of an electric field.
Proteins separated by SDS-PAGE, Coomassie brilliant blue staining. Protein electrophoresis is a method for analysing the proteins in a fluid or an extract. The electrophoresis may be performed with a small volume of sample in a number of alternative ways with or without a supporting medium, namely agarose or polyacrylamide.
Immunochemical techniques include: enzyme-linked immunosorbent assay, immunoblotting (e.g., Western blot assay), precipitation and agglutination reactions, immunoelectrophoresis, immunophenotyping, immunochromatographic assay and cyflometry. One of the earliest examples of immunochemistry is the Wasserman test to detect syphilis.
2D-Gels (Coomassie stained) Robots are used for the isolation of protein spots from 2D gels in modern laboratories. Two-dimensional gel electrophoresis, abbreviated as 2-DE or 2-D electrophoresis, is a form of gel electrophoresis commonly used to analyze proteins.
A gel plate is cut to form a series of holes ("wells") in an agar or agarose gel. A sample extract of interest (for example human cells harvested from tonsil tissue) is placed in one well, sera or purified antibodies are placed in another well and the plate left for 48 hours to develop.