Molecular imprinting method for fabricating novel glucose sensor: polyvinyl acetate electrode reinforced by MnO2/CuO loaded on graphene oxide nanoparticles.
Clicks: 240
ID: 54841
2016
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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farid2016molecularfood
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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 |
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| 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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