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Gold nano-particles as electrochemical signal amplifier for immune-reaction monitoring A new signal amplification strategy based on simultaneous application of gold nanoparticles (AuNPs) and horseradish peroxidase (HRP) was employed to improve the sensitivity of an electrochemical immunoassay for detection of human IgG (hIgG), as a model antigenic protein. This immunoassay system was fabricated on magnetic carboxyl-functionalized multi-walled carbon nanotubes (COOH-MWCNT/Fe3O4 nanocomposite). The COOH-MWCNT/Fe3O4 nanocomposite was constructed by chemical co-precipitation of F

Topics: Signal amplification, Gold nanoparticles, Electrochemical immunoassay, Human IgG, COOH-MWCNT/Fe3O4 nanocomposite
Year: 2016
OAI identifier: oai:CiteSeerX.psu:
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