一种同时检测多巴胺和尿酸的WSe2@Poly(3,4-乙烯二氧噻吩)纳米复合电化学传感器

IF 2.9 Q2 ELECTROCHEMISTRY

Journal of Electrochemical Science and Engineering Pub Date : 2022-07-25 DOI:10.5599/jese.1375

Yasin Tangal, Deniz Çoban, Sadık Çoğal

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引用次数: 1

摘要

本文采用水热法制备了二维WSe2纳米片与聚(3,4 -乙烯二氧噻吩(WSe2@PEDOT)的纳米复合材料，并对其进行了结构和形态表征。利用该纳米复合材料修饰玻碳电极，构建了在抗坏血酸(AA)存在下同时测定多巴胺(DA)和尿酸(UA)的电化学传感平台。结果表明，PEDOT掺入WSe2纳米片具有增强的电化学行为和对DA和UA的电催化活性。使用差分脉冲伏安法(DPV)测量，WSe2@PEDOT修饰电极显示出宽的线性检测范围，DA为16至466µM, UA为20至582.5µM。在抗坏血酸和其他干扰物质的主要干扰下，该电极对DA和UA也表现出高选择性。

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A WSe2@Poly(3,4-ethylenedioxythiophene) nanocomposite based-electrochemical sensor for simultaneous detection of dopamine and uric acid

In the present work, a nanocomposite of two-dimensional WSe2 nanosheets with poly(3,4‑ethylenedioxythiophene (WSe2@PEDOT) was prepared by facile hydrothermal method and characterized in terms of structural and morphological analyses. This nanocomposite was used to modify glassy carbon electrode for the construction of an electrochemical sensing platform for simultaneous determination of dopamine (DA) and uric acid (UA) in the presence of ascorbic acid (AA). It was found that the incorporation of PEDOT into WSe2 nanosheets exhibited enhanced electrochemical behaviors and electro¬catalytic activity against DA and UA. Using differential pulse voltammetry (DPV) measurements, the WSe2@PEDOT modified electrode displayed wide linear detection ranges of 16 to 466 µM for DA and 20 to 582.5 µM for UA. The electrode also exhibited high selectivity against DA and UA in the presence of major interference of ascorbic acid and other interferent substances.

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来源期刊

Journal of Electrochemical Science and Engineering ELECTROCHEMISTRY-

CiteScore

3.60

自引率

27.30%

发文量

审稿时长

6 weeks