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- W2504441897 abstract "A highly sensitive non-enzymatic glucose sensor based on Cu nanoparticles (CuNPs)/polyaniline (PANI)/graphene nanocomposite was fabricated via simple in-situ reduction of Cu precursor in polyaniline nanofibers under mild conditions followed by mechanical mixing with graphene suspension to form the composites with different graphene contents (0.5%, 1%, and 2%). The properties of nanocomposites were characterized by SEM, TEM, XRD, UV–Vis, and XPS. The CuNPs (d = 2–4 nm) only slightly altered the ordered structure of PANI. It was found that CuNPs have direct electronic interaction with PANI via the N atoms on the polymer backbone, which enabled fast electrons transfer from electrode to CuNPs through graphene and PANI. The CuNPs/PANI/graphene nanocomposites were coated on a glassy carbon electrode for the investigation of their electrochemical properties. Both CuNPs/PANI and CuNPs/PANI/graphene showed high sensitivity towards glucose oxidation which occurred at ~ 0.5 V vs. SCE. The best performance was achieved by the CuNPs/PANI/1% graphene-modified electrode which showed sensitivity of ~ 150 mA cm− 2 M− 1, detection limit of 0.27 μM (S/N = 3), and response time of about 3 s. This system was also highly selective towards glucose oxidation that almost no signal was detected from interferents such as ascorbic acid and dopamine, demonstrating its great potential as a non-enzymatic glucose sensor." @default.
- W2504441897 created "2016-08-23" @default.
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- W2504441897 date "2016-11-01" @default.
- W2504441897 modified "2023-10-14" @default.
- W2504441897 title "Copper nanoparticles/polyaniline/graphene composite as a highly sensitive electrochemical glucose sensor" @default.
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- W2504441897 doi "https://doi.org/10.1016/j.jelechem.2016.08.004" @default.
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