纳米孔
非阻塞I/O
材料科学
微分脉冲伏安法
循环伏安法
透射电子显微镜
扫描电子显微镜
复合数
电极
化学工程
电化学
纳米技术
催化作用
复合材料
化学
有机化学
物理化学
工程类
作者
Gowhar A. Naikoo,Mustri Bano,Fareeha Arshad,Israr U. Hassan,Fatima BaOmar,Iman M. Alfagih,Murtaza M. Tambuwala
标识
DOI:10.1038/s41598-023-32719-w
摘要
The escalating risk of diabetes and its consequential impact on cardiac, vascular, ocular, renal, and neural systems globally have compelled researchers to devise cost-effective, ultrasensitive, and reliable electrochemical glucose sensors for the early diagnosis of diabetes. Herein, we utilized advanced composite materials based on nanoporous CuO, CuO/Ag, and CuO/Ag/NiO for glucose detection. The crystalline structure and surface morphology of the synthesized materials were ascertained via powder X-ray diffraction (P-XRD), energy dispersive X-ray (EDX) spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis. The electro-catalytic properties of the manufactured electrode materials for glucose electro-oxidation in alkaline conditions were probed using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. Notably, the CuO/Ag/NiO electrode material exhibited exceptional performance as a non-enzymatic glucose sensor, displaying a linear range of 0.001-5.50 mM, an ultrahigh sensitivity of 2895.3 μA mM-1 cm-2, and a low detection limit of 0.1 μM. These results suggest that nanoporous CuO/Ag/NiO-based composite materials are a promising candidate for early diagnosis of hyperglycemia and treatment of diabetes. Furthermore, non-enzymatic glucose sensors may pave the way for novel glucometer markets.
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