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J Vis Exp ; (195)2023 May 19.
Artículo en Inglés | MEDLINE | ID: mdl-37318251

RESUMEN

Immunoassays are important tests for the detection of numerous molecular targets. Among the methods currently available, the cytometric bead assay has gained prominence in recent decades. Each microsphere that is read by the equipment represents an analysis event of the interaction capacity between the molecules under test. Thousands of these events are read in a single assay, thus ensuring high assay accuracy and reproducibility. This methodology can also be used in the validation of new inputs, such as IgY antibodies, for the diagnosis of diseases. These antibodies are obtained through immunizing chickens with the antigen of interest and then extracting the immunoglobulin from the yolk of the animals' eggs; therefore, this is a painless and highly productive method for obtaining the antibodies. In addition to a methodology for the high-precision validation of the antibody recognition capacity of this assay, this paper also presents a method for extracting these antibodies, determining the best coupling conditions for the antibodies and latex beads, and determining the sensitivity of the test.


Asunto(s)
Anticuerpos , Pollos , Animales , Reproducibilidad de los Resultados , Inmunoglobulinas , Inmunoensayo , Yema de Huevo , Estándares de Referencia
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