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- W2384409715 abstract "A disposable biosensor for determination of hydrogen peroxide(H2O2) based on gold nanoparticles(Au)-graphene sheets(GS)-horseradish peroxidase(HRP)-Nafion biocomposites modified screen-printed carbon electrodes(SPCEs) was fabricated.To construct the H2O2 biosensor,GS and HRP were co-immobilized into biocompatible Nafion,then the SPCEs was modified by the biocomposite,followed by electroless plating of Au on the surface to fabricate SPCEs/Au/GS/HRP/Nafion electrode.Different technologies were employed to study the synthesis of GS,construction processes and the electrochemical properties of the biosensor.Under the optimized experimental conditions,Cyclic voltammetry(CV) demonstrated that the direct electron transfer(DET) of HRP was realized,and the biosensor had an excellent performance in terms of electrocatalytic reduction towards H2O2.The linear response of the biosensor to H2O2 was in the concentration range of 2.0×10-5～2.5×10-3mol/L(R2=0.9994) with a detection limit of 1.2×10-5mol/L.The proposed electrochemical biosensor was sensitive,quickly,disposable with low cost,fewer sample volume,easy preparation and strong anti-interference,which shows great promise for screen-determination of trace H2O2 in real samples." @default.
- W2384409715 created "2016-06-24" @default.
- W2384409715 creator A5075266638 @default.
- W2384409715 date "2012-01-01" @default.
- W2384409715 modified "2023-09-23" @default.
- W2384409715 title "Study on a disposable hydrogen peroxide biosensor based on Au-graphene-HRP-Nafion biocomposites modified screen-printed carbon electrodes" @default.
- W2384409715 hasPublicationYear "2012" @default.
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