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Updated: Aug 15, 2026

Development of a Colloidal Gold-based Immunochromatographic Test Strip for Detection of Cetacean Myoglobin
Published on: July 13, 2016
Immunogold for detection of antigen on nitrocellulose paper
Abstract:
The application of immunogold for the detection of antigen-antibody complexes on nitrocellulose paper is described. Tobacco mosaic virus (TMV) protein, either purified or in leaf extract, was bound to the nitrocellulose paper and then exposed to rabbit anti-TMV serum. The antigen-antibody complexes were detected by gold-labeled goat anti-rabbit immunoglobulin G. The gold-labeled antibody is directly visible because of its pink color. This method can detect 1-5 pg of TMV protein, either in purified form or in the unpurified plant extract, with high specificity.
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