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  • Title: Glucose sensor based on an electrochemical reduced graphene oxide-poly(L-lysine) composite film modified GC electrode.
    Author: Hua L, Wu X, Wang R.
    Journal: Analyst; 2012 Dec 21; 137(24):5716-9. PubMed ID: 23082313.
    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 L(-1).
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