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- W2017481413 abstract "An electrochemical immunosensor, basing on a dual amplification strategy by employing a biocompatible Fe3O4/polyaniline/Nafion (Fe3O4/PANI/Nafion) layer as sensor platform and multi-enzyme-antibody functionalized highly-carbonized spheres (multi-HRP-HCS-Ab2) as label, was constructed for sensitive detection of benzo[a]pyrene (BaP). The stable film, Fe3O4/PANI/Nafion, can not only immobilize biomolecules, but also catalyze the reduction of hydrogen peroxide, indicating an accelerated electron transfer pathway of the platform. The experimental conditions, including the concentration of Nafion, concentration of Fe3O4/polyaniline (Fe3O4/PANI), pH of the detection solution and concentrations of biomolecules, were studied in detail. Basing on a competitive immunoassay, the current change was proportional to the logarithm of BaP concentration in the range of 8 pM and 2 nM with the detection limit of 4 pM. The proposed immunosensor exhibited acceptable reproducibility and stability. This new type of dual amplification strategy may provide potential applications for the detection of environmental pollutants." @default.
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- W2017481413 date "2012-04-01" @default.
- W2017481413 modified "2023-10-08" @default.
- W2017481413 title "Electrochemical immunoassay of benzo[a]pyrene based on dual amplification strategy of electron-accelerated Fe3O4/polyaniline platform and multi-enzyme-functionalized carbon sphere label" @default.
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- W2017481413 doi "https://doi.org/10.1016/j.aca.2012.01.059" @default.
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