Evidence map›Paper›PMID 38806865›Full record

ArticleMikrochimica acta2024

Self-assembled ordered AuNRs-modified electrodes for simultaneous determination of dopamine and topotecan with improved data reproducibility.

Xiaoyun Qin, Peijun Yin, Yuhang Zhang, Mingxing Su, Fenghua Chen, Xinru Xu, Jianbo Zhao, Yanghai Gui, Huishi Guo, Chao Zhao and 1 more

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Article in Mikrochimica acta, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

11 authors.

Xiaoyun Qin *School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450000, China.
Peijun Yin *School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450000, China.
Yuhang ZhangSchool of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450000, China.
Mingxing SuSchool of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450000, China.
Fenghua ChenSchool of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450000, China.
Xinru XuTianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China.
Jianbo ZhaoSchool of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450000, China.
Yanghai GuiSchool of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450000, China.
Huishi GuoSchool of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450000, China.
Chao ZhaoTianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China.
Zhen ZhangTianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China. zhzhen@tju.edu.cn.

Funding

Henan Provincial Science and Technology Research Project 202102210045Henan Provincial Science and Technology Research Project 202102210260Henan Provincial Science and Technology Research Project 212102310858National Natural Science Foundation of China 21671179National Natural Science Foundation of China 21705117National Natural Science Foundation of China 21904120National Natural Science Foundation of China U1904213National Natural Science Foundation of China U20041102
6 · The paper itself

Abstract

Gold nanomaterials have been widely explored in electrochemical sensors due to their high catalytic property and good stability in multi-medium. In this paper, the reproducibility of the signal among batches of gold nanorods (AuNRs)-modified electrodes was investigated to improve the data stabilization and repeatability. Ordered and random self-assembled AuNRs-modified electrodes were used as electrochemical sensors for the simultaneous determination of dopamine (DA) and topotecan (TPC), with the aim of obtaining an improved signal stability in batches of electrodes and realizing the simultaneous determination of both substances. The morphology and structure of the assemblies were analyzed and characterized by UV-Vis spectra, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray powder diffraction (XRD). Electrochemical studies showed that the ordered AuNRs/ITO electrodes have excellent signal reproducibility among several individuals due to the homogeneous mass transfer in the ordered arrangement of the AuNRs. Under the optimized conditions, the simultaneous detection results of DA and TPC showed good linearity in the ranges 1.75-45 μM and 1.5-40 μM, and the detection limits of DA and TPC were 0.06 μM and 0.17 μM, respectively. The results showed that the prepared ordered AuNR/ITO electrode had high sensitivity, long-term stability, and reproducibility for the simultaneous determination of DA and TPC, and it was expected to be applicable for real sample testing.

Indexed as

DopamineElectrochemical TechniquesElectrodesGoldLimit of DetectionNanotubesTopotecanHumansReproducibility of ResultsDopamineGoldTopotecanDopamineElectrochemical sensorGold nanorodsSelf-assemblySquare wave voltammetryTopotecan

Identifiers

PMID38806865

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