Diaphragm Discharge Synthesis of Ag2O/CuO Nanoshuttle for Enzyme-Free Glucose Sensing

IF 2.6 3区物理与天体物理 Q3 ENGINEERING, CHEMICAL

Plasma Chemistry and Plasma Processing Pub Date : 2025-03-07 DOI:10.1007/s11090-025-10557-0

Jie Yu, Huihui Ma, Wenjing Ma, Kai Wang, Chenxu Liang, Minrui Li, Quanfang Lu

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引用次数: 0

Abstract

The Ag₂O/CuO nanoshuttles stacked with nanosheets were fabricated in CH₃COONa solution via direct current (DC) diaphragm discharge plasma technique, in which a silver-copper (Ag-Cu) alloy sheet was used as anode, and a graphite rod inserted into a quartz glass tube with a small hole on the sidewall was acted as cathode. The preparation mechanism of Ag₂O/CuO was discussed in detail. The performance of Ag₂O/CuO nanoshuttles as electrode material was assessed for sensing glucose. The results showed that Ag₂O/CuO electrode exhibits a low limit of detection of 0.35 µM, high sensitivity of 1001.2 µA mM^− 1 cm^− 2, wide linear range of 0.01–7.2 mM, and fast response time of only 0.4 s. In addition, Ag₂O/CuO has high selectivity, high stability and good repeatability. The glucose in human saliva is determined using Ag₂O/CuO modified electrode, the recovery is 101.1%~103.2%, and the relative standard deviations (RSDs) are below 5%. All results indicated that Ag₂O/CuO prepared by diaphragm discharge plasma can be regarded as an alternative electrode material for the glucose sensing. Compared with other synthesis methods, diaphragm discharge is a simple, effective, and green technique without expensive platinum, metal salts, alkali sources, and high temperature.

Graphical Abstract

Ag₂O/CuO nanoshuttles were fabricated via direct current diaphragm discharge plasma technique, and then regarded as an electrode material for sensing glucose

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在 CH3COONa 溶液中，通过直流（DC）隔膜放电等离子体技术，以银铜（Ag-Cu）合金片为阳极，将石墨棒插入侧壁有小孔的石英玻璃管中作为阴极，制备出了堆叠有纳米片的 Ag2O/CuO 纳米套筒。详细讨论了 Ag2O/CuO 的制备机理。评估了作为电极材料的 Ag2O/CuO 纳米套筒在感测葡萄糖方面的性能。结果表明，Ag2O/CuO 电极的检出限低至 0.35 µM，灵敏度高至 1001.2 µA mM- 1 cm-2，线性范围宽至 0.01-7.2 mM，响应时间短至 0.4 s。使用 Ag2O/CuO 改良电极测定人体唾液中的葡萄糖，回收率为 101.1%~103.2%，相对标准偏差（RSD）低于 5%。所有结果表明，利用隔膜放电等离子体制备的 Ag2O/CuO 可作为葡萄糖传感的替代电极材料。与其他合成方法相比，隔膜放电是一种简单、有效、绿色的技术，不需要昂贵的铂、金属盐、碱源和高温。图文摘要通过直流隔膜放电等离子体技术制备了 Ag2O/CuO 纳米梭子，并将其作为传感葡萄糖的电极材料。

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来源期刊

Plasma Chemistry and Plasma Processing 工程技术-工程：化工

CiteScore

5.90

自引率

8.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Publishing original papers on fundamental and applied research in plasma chemistry and plasma processing, the scope of this journal includes processing plasmas ranging from non-thermal plasmas to thermal plasmas, and fundamental plasma studies as well as studies of specific plasma applications. Such applications include but are not limited to plasma catalysis, environmental processing including treatment of liquids and gases, biological applications of plasmas including plasma medicine and agriculture, surface modification and deposition, powder and nanostructure synthesis, energy applications including plasma combustion and reforming, resource recovery, coupling of plasmas and electrochemistry, and plasma etching. Studies of chemical kinetics in plasmas, and the interactions of plasmas with surfaces are also solicited. It is essential that submissions include substantial consideration of the role of the plasma, for example, the relevant plasma chemistry, plasma physics or plasma–surface interactions; manuscripts that consider solely the properties of materials or substances processed using a plasma are not within the journal’s scope.