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A highly sensitive chemiluminescence immunosensor for the detection of prostate-specific antigen (PSA) was developed based on a novel amplification procedure with the application of enzyme encapsulated liposome. Horseradish peroxidase (HRP) encapsulated and antibody-modified liposome acts as the carrier of a large number of markers and specific recognition label for the amplified detection of PSA...
A novel, sensitive electrochemical immunoassay in a homogeneously dispersed medium is described herein based on the unique features of agarose beads and the special amplified properties of biometallization. The immunochemical recognition event between human immunoglobulin G (IgG) and goat anti-human IgG antibody is chosen as the model system to demonstrate the proposed immunoassay approach. Avidin-agarose...
We demonstrate herein a novel electrochemical protocol for quantification of human IgG based on the precipitation of copper on gold nanoparticle tags and a subsequent electrochemical stripping detection of the dissolved copper. The immunoassay was conducted by following the typical procedure for sandwich-type immunoreaction. Goat anti-human IgG was immobilized on the wells of microtiter plates. The...
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