Molecular imprinting method for fabricating novel glucose sensor: polyvinyl acetate electrode reinforced by MnO2/CuO loaded on graphene oxide nanoparticles.

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2016
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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 53μM, and the sensor responses are linear for concentrations from 0.5 to 4.4mM. Relative standard deviations for intra- and inter-day determination were less than 6.0%. The relative recoveries for different samples were 96%.
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Authors Farid, Mohammad Masoudi;Goudini, Leila;Piri, Farideh;Zamani, Abbasali;Saadati, Fariba;
Journal Food chemistry
Year 2016
DOI
10.1016/j.foodchem.2015.07.128
URL
Keywords
Cyclic voltammetry nanocomposite ammonium persulfate (pubchem cid: 62648) clinical chemistry enzyme free sensor glucose (pubchem cid: 53782692) graphite (pubchem cid: 5462310) potassium permanganate (pubchem cid: 516875) sodium dodecyl sulfate (pubchem cid: 3423265) vinyl acetate (pubchem cid: 7904)

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