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Reference type: Journal
Authors: Farid MM, Goudini L, Piri F, Zamani A, Saadati F
Article Title: Molecular imprinting method for fabricating novel glucose sensor: Polyvinyl acetate electrode reinforced by MnO2/CuO loaded on graphene oxide nanoparticles.
Publication date: 2016
Journal: Food Chemistry
Volume: 194
Page numbers: 61-67.
DOI: 10.1016/j.foodchem.2015.07.128
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0308814615011620

Abstract: An enzyme free glucose sensor was prepared by a molecular imprinting method (MIP). The procedure was developed by in situ preparation of a new polyvinyl acetate (PVA) electrode reinforced by MnO2/CuO loaded on graphene oxide (GO) nanoparticles (PVA/MnO2@GO/CuO). The nanocomposite was modified in the presence of glucose and then imprinted. A carbone paste method with voltammetry was used in the fabrication of the sensor from prepared MIP nanocomposite. PVA/MnO2@GO/CuO electrode was characterized by X-ray diffraction, FT-IR spectroscopy and scanning electron microscopy. Electrocatalytic activity of the electrode toward glucose oxidation was then investigated by cyclic voltammetry in alkaline medium. The results show that the response of PVA/MnO2@GO/CuO MIP is much higher than PVA/MnO2@GO/CuO non-imprinted electrode toward glucose oxidation. The detection limit was 53 μM, and the sensor responses are linear for concentrations from 0.5 to 4.4 mM. Relative standard deviations for intra- and inter-day determination were less than 6.0%. The relative recoveries for different samples were 96%
Template and target information: glucose
Author keywords: Enzyme free sensor, cyclic voltammetry, Clinical chemistry, Nanocomposite

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