Which scientist is credited with the development of the fluorescent antibody technique used for antigen detection?

Study for the PMLS History of Medical Technology Test. Explore flashcards and multiple choice questions, each question is accompanied by hints and explanations. Get prepared for your exam!

Multiple Choice

Which scientist is credited with the development of the fluorescent antibody technique used for antigen detection?

A fluorescent antibody technique works by attaching a fluorescent dye to an antibody so it can bind a specific antigen and be seen with a fluorescence microscope. Albert Coons pioneered this approach in the 1940s, demonstrating that fluorescein-labeled antibodies could specifically detect antigens in tissues and cells. This set the stage for immunofluorescence, including both direct methods (where the labeled antibody binds the antigen) and indirect methods (where a secondary fluorescent antibody amplifies the signal). The other scientists mentioned made major contributions to immunology and medicine—Pasteur with vaccines and germ theory, Landsteiner with blood group serology, Ehrlich with receptor concepts and chemotherapy—but none developed this fluorescent antibody technique.

A fluorescent antibody technique works by attaching a fluorescent dye to an antibody so it can bind a specific antigen and be seen with a fluorescence microscope. Albert Coons pioneered this approach in the 1940s, demonstrating that fluorescein-labeled antibodies could specifically detect antigens in tissues and cells. This set the stage for immunofluorescence, including both direct methods (where the labeled antibody binds the antigen) and indirect methods (where a secondary fluorescent antibody amplifies the signal). The other scientists mentioned made major contributions to immunology and medicine—Pasteur with vaccines and germ theory, Landsteiner with blood group serology, Ehrlich with receptor concepts and chemotherapy—but none developed this fluorescent antibody technique.

More practice questions