Ahamad Nadeem, Banerjee Soumallya, Wei Chia-Chun, Lu Kuan-Cheng, Khedulkar Akhil Pradiprao, Jian Wen-Bin, Mahmood Sadiq, Chu Chih-Wei, Lin Hong-Cheu
Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300093, Taiwan.
Department of Electrophysics, National Yang-Ming Chiao Tung University, Hsinchu 300093, Taiwan.
ACS Appl Mater Interfaces. 2024 Nov 27;16(47):64494-64504. doi: 10.1021/acsami.4c13653. Epub 2024 Nov 12.
In this study, we successfully synthesized nickel oxide (NiO) nanoparticles (NPs), i.e., samples , , and , via an environmentally friendly one-step electro-exploding wire technique by employing three distinct voltage levels of 24, 36, and 48 V, respectively. Sample showed the most rugged surface and smallest particle size, which helped to enhance electrocatalytic properties. The highest Ni content of sample contributed to the increasing redox current and rendering highly enhanced chemical reactions and thereby improving their electrochemical properties and electrocatalytic performance in the glucose oxidation processes in alkaline (0.1 M NaOH, pH = 13) media. The electrode showcased an excellent linear detection range spanning from 0.1 to 1 mM, featuring a remarkable sensitivity of 1202 μA mM cm and an exceptionally low limit of detection (LOD) value of 0.25 μM. Remarkably, NiO NPs exhibited exceptional long-term stability, commendable reproducibility, favorable repeatability, and outstanding selectivity. This study also highlights the excellent operational performance of the electrode in real-world samples, such as commercially available beverages and human urine, highlighting the practical nature of these nonenzymatic sensors in real-life scenarios for the food industries, clinical diagnostics, and biotechnology applications.
在本研究中，我们通过采用分别为24 V、36 V和48 V的三种不同电压水平，利用环境友好的一步电爆炸丝技术成功合成了氧化镍（NiO）纳米颗粒（NPs），即样品、和。样品显示出最粗糙的表面和最小的粒径，这有助于增强电催化性能。样品中最高的镍含量导致氧化还原电流增加，使化学反应高度增强，从而改善其在碱性（0.1 M NaOH，pH = 13）介质中葡萄糖氧化过程中的电化学性能和电催化性能。电极展示了从0.1到1 mM的出色线性检测范围，具有1202 μA mM cm的显著灵敏度和0.25 μM的极低检测限（LOD）值。值得注意的是，NiO NPs表现出卓越的长期稳定性、良好的重现性、有利的重复性和出色的选择性。本研究还突出了电极在实际样品（如市售饮料和人类尿液）中的出色操作性能，突出了这些非酶传感器在食品工业、临床诊断和生物技术应用等实际场景中的实用性。
