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Issue 24, 2012
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Glucose sensor based on an electrochemical reduced graphene oxide-poly(L-lysine) composite film modified GC electrode

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Abstract

A convenient and environmentally friendly method of fabricating glucose biosensors is proposed. Glucose oxidase (GOD) was immobilized on electrochemically reduced graphene oxide (ERGO) which was adsorbed on the poly-L-lysine (PLL) modified glassy carbon electrode after being immersed in GO solution for 4 h. The electrochemical behaviors of GOD/ERGO/PLL/GC electrode have been investigated by cyclic voltammetry. Direct electron transfer between GOD immobilized with ERGO/PLL and GC electrode was observed. Moreover, the GOD/ERGO/PLL/GC electrode exhibited excellent electrocatalytic activity for the detection of glucose with a linear range from 0.25 to 5 mmol Lāˆ’1.

Graphical abstract: Glucose sensor based on an electrochemical reduced graphene oxide-poly(l-lysine) composite film modified GC electrode

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Publication details

The article was received on 10 May 2012, accepted on 04 Oct 2012 and first published on 08 Oct 2012


Article type: Communication
DOI: 10.1039/C2AN35612K
Analyst, 2012,137, 5716-5719

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    Glucose sensor based on an electrochemical reduced graphene oxide-poly(L-lysine) composite film modified GC electrode

    L. Hua, X. Wu and R. Wang, Analyst, 2012, 137, 5716
    DOI: 10.1039/C2AN35612K

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