Fig. 3From: Use of biotin-labeled IgY overcomes protein A interference in immunoassays involving Staphylococcus aureus antigensDot ELISA to test the biotinylation of IgY antibodies using streptavidin-HRP. A1-A4- Different dilutions of biotin-labeled IgY coated on a nitrocellulose membrane. B1-B4- Normal IgY coated on a nitrocellulose membrane. Color development was observed only with lanes corresponding to biotin-labeled antibodiesBack to article page