Non-enzymatic analysis of glucose on printed films based on multi-walled carbon nanotubes

被引：0
作者：
Nikos G. Tsierkezos
Uwe Ritter
Nora Wetzold
Arved Carl Hübler
机构：
[1] Technische Universität Ilmenau,Institut für Chemie und Biotechnik
[2] Technische Universität Chemnitz,Institut für Print
来源：
Microchimica Acta | 2012年 / 179卷
关键词：
Enzyme-free sensor; Glucose; Multi-walled carbon nanotubes; Flexographic printing process; Polycarbonate substrate;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We report on the fabrication of an enzyme–free electrochemical sensor for glucose based on a printed film consisting of multi–walled carbon nanotubes (MWCNTs). The MWCNT–based film can be produced by means of a flexographic printing process on a polycarbonate (PC) substrate. The electrochemical response of the MWCNT–based film (referred to as MWCNT–PC) towards the oxidation of glucose at pH 7 was studied by means of cyclic voltammetry and electrochemical impedance spectroscopy. The MWCNT–PC film exhibits substantial electrocatalytic activity towards the oxidation of glucose at an anodic potential of 0.30 V (vs. Ag/AgCl). The findings reveal that the MWCNT–PC film enables non–enzymatic sensing of glucose with a detection limit as low as 2.16 μM and a sensitivity of 1045 μA∙mM−1∙cm−2.
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页码：157 / 161
页数：4
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