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- W2947737554 abstract "A glucose biosensor based on Au nanoparticles (AuNPs), glucose oxidase (GOD) and polynorepinephrine (PNE) was fabricated by a simple and green approach. PNE-functionalized AuNPs (AuNPs@PNE) were synthetized by the polymerization of norepinephrine (NE) onto the surfaces of AuNPs and casted on an Au electrode. After dropping a solution containing NE and GOD on the AuNPs@PNE-modified Au electrode and oxidizing the monomer NE by cyclic voltammetry, a PNE, GOD and AuNP-modified Au electrode (PNE/GOD/AuNPs@PNE/Au) was obtained. The biosensor presented high sensitivity of 35.4 μA mM-1 cm-2 to glucose in the range from 0.003 mM to 3.43 mM with a response time of less than 3 s, a detection limit of 1.34 μM at a signal/noise ratio of 3, a low Michaelis-Menten constant (6.8 mM) and outstanding selectivity as well as stability. Moreover, the sensitivity and linear detection range of the as-prepared biosensor were further enhanced by the addition of the redox mediator p-benzoquinone." @default.
- W2947737554 created "2019-06-07" @default.
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- W2947737554 date "2019-01-01" @default.
- W2947737554 modified "2023-10-11" @default.
- W2947737554 title "A glucose biosensor based on the immobilization of glucose oxidase and Au nanocomposites with polynorepinephrine" @default.
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- W2947737554 doi "https://doi.org/10.1039/c9ra02054c" @default.
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