Title |
Corrigendum to “A high-performance glucose biosensor using covalently immobilised glucose oxidase on a poly(2,6-diaminopyridine)/carbon nanotube electrode”
|
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Published in |
Talanta, March 2016
|
DOI | 10.1016/j.talanta.2016.02.028 |
Pubmed ID | |
Authors |
Mohammad Ali Kamyabi, Nasim Hajari, Anthony P.F. Turner, Ashutosh Tiwari |
Abstract |
A highly-sensitive glucose biosensor amenable to ultraminiaturisation was fabricated by immobilization of glucose oxidase (GOX), onto a poly(2,6-diaminopyridine)/multi-walled carbon nanotube/glassy carbon electrode (poly(2,6-DP)/MWCNT/GCE). Cyclic voltammetry was used for both the electrochemical synthesis of poly-(2,6-DP) on the surface of a MWCNT-modified GC electrode, and characterization of the polymers deposited on the GC electrode. The synergistic effect of the high active surface area of both the conducting polymer, i.e., poly-(2,6-DP) and MWCNT gave rise to a remarkable improvement in the electrocatalytic properties of the biosensor. The transfer coefficient (α), heterogeneous electron transfer rate constant and Michaelis-Menten constant were calculated to be 0.6, 4s-1 and 0.22mM at pH 7.4, respectively. The GOx/poly(2,6-DP)/MWCNT/GC bioelectrode exhibited two linear responses to glucose in the concentration ranging from 0.42μM to 8.0 mM with a correlation coefficient of 0.95, sensitivity of 52.0μAmM-1cm-2, repeatability of 1.6% and long-term stability, which could make it a promising bioelectrode for precise detection of glucose in the biological samples. |
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Other | 2 | 20% |
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Other | 1 | 10% |
Unknown | 2 | 20% |