Izvorni znanstveni članak
https://doi.org/10.5599/jese.2368
Highly stable and selective determination of glucose by a modified glassy carbon electrode based on micro-rods [Ni(HL)NCS] complex as a novel modifier
Mohammad Javad Khatami
; Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran
Mohammad Mazloum-Ardakani
; Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran
Hamideh Mohammadian-Sarcheshmeh
; Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran
Rasoul Vafazadeh
; Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran
Sažetak
Non-enzymatic glucose sensors have acquired a lot of attention, where the modifier materials perform as an electrocatalyst instead of an enzyme on the surface of electrodes. More active sites increased synergistic reactions, and expanded contacts between the electrolyte and the catalyst are essential to enhance catalytic performances. Numerous efforts have been made to fabricate novel non-enzymatic glucose sensors with electrode modification strategies. Herein, a non-enzymatic electrochemical glucose sensor was constructed by a modified glassy carbon electrode based on micro-rods nickel complex as a novel modifier for glucose detection. In alkali media, the non-enzymatic glucose sensor showed a linear dynamic range of 100-1100 µM with an excellent limit of detection of 15.8 μM (S/N = 3). The proposed sensor demonstrated remarkable stability (after recording 50 continuous CV cycles), good reproducibility, and significant anti-interference performance toward fructose, ascorbic acid, dopamine, citric acid, uric acid and sucrose. According to this study, complexes can be an excellent suggestion to fabricate non-enzymatic glucose sensors.
Ključne riječi
Glucose; non-enzymatic sensor; Ni complex; stability; selectivity; human blood serum
Hrčak ID:
321287
URI
Datum izdavanja:
1.10.2024.
Posjeta: 142 *