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|Title:||Nonenzymatic glucose detection using multi-walled carbon nanotube electrodes||Authors:||Ye, J.-S.
|Issue Date:||Jan-2004||Citation:||Ye, J.-S., Wen, Y., Zhang, W.D., Gan, L.M., Xu, G.Q., Sheu, F.-S. (2004-01). Nonenzymatic glucose detection using multi-walled carbon nanotube electrodes. Electrochemistry Communications 6 (1) : 66-70. ScholarBank@NUS Repository. https://doi.org/10.1016/j.elecom.2003.10.013||Abstract:||The electrocatalytic oxidation of glucose in alkaline medium directly at well-aligned multi-wall carbon nanotubes (MWNTs) electrodes has been investigated in the present study. Compared to glassy carbon electrode, a substantial (+400 mV) decrease in the overvoltage of the glucose oxidation reaction was observed at MWNTs electrodes with oxidation starting at ca. +0.10 V (vs. 3 M KCl-Ag|AgCl). The electrocatalytic effect is mainly attributed to carbon nanotubes with possible minor contributions from the Co catalysts present on the Ta substrate. At an applied potential of +0.20 V, MWNTs electrodes give a high and reproducible sensitivity of 4.36 μA cm -2 mM-1 in the presence of high concentration of chloride ion. The well-aligned MWNTs electrode thus allows highly sensitive, low-potential, stable, and fast amperometric sensing of glucose, promising for the development of nonenzymatic glucose sensors. © 2003 Elsevier B.V. All rights reserved.||Source Title:||Electrochemistry Communications||URI:||http://scholarbank.nus.edu.sg/handle/10635/94369||ISSN:||13882481||DOI:||10.1016/j.elecom.2003.10.013|
|Appears in Collections:||Staff Publications|
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