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- W2924700249 abstract "A sensitive sandwich-type electrochemical immunosensor based on dual amplification strategy was constructed. The dual amplification strategy has been used secondary antibody(Ab2)-horseradish peroxidase(HRP)[email protected] nanoparticles ([email protected] NPs) for carcinoembryonic antigen(CEA) detection. Ab2[email protected] NPs as dual amplification markers triggered the disproportionation of H2O2, which could facilitate the catalytic oxidation of hydroquinone to quinone(BQ). In addition, due to their large surface area and excellent conductivity, nitrogen-doped graphene were used as a platform to firmly assemble primary antibody (Ab1). Above mentioned generated amout of BQ are corresponding to trace CEA, resulting in the highly electrochemical reduction signal. Under the optimal conditions, the linear range of CEA concentration was 0.0001–100 ng mL−1, and the limit of detection (LOD) could be as low as 0.05 pg mL−1. Importantly, the immunosensor also showed acceptable stability, reproducibility and selectivity." @default.
- W2924700249 created "2019-04-01" @default.
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- W2924700249 date "2019-06-01" @default.
- W2924700249 modified "2023-10-18" @default.
- W2924700249 title "A dual amplification electrochemical immunosensor based on HRP-Au@Ag NPs for carcinoembryonic antigen detection" @default.
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- W2924700249 doi "https://doi.org/10.1016/j.ab.2019.03.003" @default.
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