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  • Title: A photoelectrochemical immunosensor for benzo[a]pyrene detection amplified by bifunctional gold nanoparticles.
    Author: Kang Q, Chen Y, Li C, Cai Q, Yao S, Grimes CA.
    Journal: Chem Commun (Camb); 2011 Dec 14; 47(46):12509-11. PubMed ID: 22027936.
    Abstract:
    Ultrasensitive photoelectrochemical immunoassay of polycyclic aromatic hydrocarbon (PAH) is proposed using an antibody-modified nanostructured TiO(2) electrode combined with bifunctional gold nanoparticles modified with the PAH antigen and horseradish peroxidase (HRP). The HRP-catalyzed reaction prompts the electron transfer between the electrode and electrolyte causing an excellent photocatalytic performance.
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