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A novel non-enzymatic electrochemiluminescence (ECL) sensor based on palladium nanoparticles (PdNPs)-functional carbon nanotubes (FCNTs) was discovered for glucose detection. PdNPs were homogeneously modified on FCNTs using a facile spontaneous redox reaction method. Their morphologies were characterized by transmission electron microscopy (TEM). Based on ECL experimental results, the PdNPs-FCNTs-Nafion film modified electrode displayed high electrocatalytic activity towards the oxidation of glucose. The free radicals generated by the glucose oxidation reacted with the luminol anion (LH-), and enhanced the ECL signal. Under the optimized conditions, the linear response of ECL intensity to glucose concentration was valid in the range from 0.5 to 40 μmol L-1 (r2 = 0.9974) with a detection limit (S/N = 3) of 0.09 μmol L-1. In addition, the modified electrode presented high resistance towards the poisoning of chloride ion, high selectivity and long-term stability. In order to verify the sensor reliability, it was applied to the determination of glucose in glucose injection samples. The results indicated that the proposed approach provided a highly sensitive, more facile method with good reproducibility for glucose determination, promising the development of a non-enzymatic ECL glucose sensor. © 2009 Elsevier B.V. All rights reserved.
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Biosensors and Bioelectronics
ISSN: 0956-5663
Year: 2009
Issue: 12
Volume: 24
Page: 3475-3480
5 . 4 2 9
JCR@2009
1 0 . 7 0 0
JCR@2023
JCR Journal Grade:1
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count: 66
ESI Highly Cited Papers on the List: 0 Unfold All
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Chinese Cited Count:
30 Days PV: 1
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