Development of non-enzymatic glucose sensor based on efficient loading Ag nanoparticles on functionalized carbon nanotubes

被引：191
作者：
Baghayeri, Mehdi [1 ]
Amiri, Amirhassan [1 ]
Farhadi, Samaneh [1 ]
机构：
[1] Hakim Sabzevari Univ, Fac Sci, Dept Chem, Sabzevar, Iran
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2016年 / 225卷
关键词：
Silver nanoparticles; Non-enzymatic sensor; Electrodeposition; Electrocatalysis; HYDROGEN-PEROXIDE SENSOR; DIRECT ELECTROCHEMISTRY; GOLD NANOPARTICLES; MODIFIED ELECTRODE; REAL SAMPLES; COMPOSITE; OXIDASE; NANOCOMPOSITES; BIOSENSORS; ELECTROCATALYSIS;
D O I：
10.1016/j.snb.2015.11.003
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A facile strategy has been developed to fabricate silver nanoparticles (Ag NPs) through an electrochemical method with the assistance of metformin functionalized MWCNT (Ag@MH/MWCNT nanocomposite). Investigations by field emission scanning electron microscopy (FESEM) confirmed that the prepared nanocomposite have a porous structure that is constructed by interconnecting functionalized MWCNT framework. Electrochemical studies show that the nanocomposite exhibits high stability and excellent activity for electrocatalytic oxidation of glucose in alkaline solutions, which allows the Ag@MH/MWCNT to be used in enzyme-free amperometric sensors for glucose determination. It was confirmed that the Ag@MH/MWCNT based glucose biosensor presents wide response window for glucose concentrations of 1.0 nM-350 mu M, short amperometric response time (4 s), low detection limit of 0.0003 mu M (S/N = 3), high sensitivity as well as good selectivity. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：354 / 362
页数：9
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