ISSN:
0026-3672
Content:
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 mu M and a sensitivity of 1045 mu Aa (TM) mM(-1)a (TM) cm(-2).
In:
Microchimica acta ..., Wien [u.a.] : Springer, 1937, 179(2012), 1/2, Seite 157-161, 0026-3672
In:
volume:179
In:
year:2012
In:
number:1/2
In:
pages:157-161
Language:
English
Author information:
Wetzold, Nora 1978-
Author information:
Hübler, Arved Carl 1960-
Author information:
Ritter, Uwe 1963-
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