Copper nanostructures anchored on renewable carbon as electrochemical platform for the detection of dopamine, fluoxetine and escitalopram

IF 6.5 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Sensors and Actuators Reports Pub Date : 2022-11-01 DOI:10.1016/j.snr.2022.100107

Clara M.B. Trindade, Martin K.L. Silva, Ivana Cesarino

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引用次数: 6

Abstract

For the first time, renewable carbon (RC) from bamboo-biomass modified with copper nanoparticles (CuNPs) has been prepared via a chemical reduction step for the electroanalytical detection of dopamine (DOP), fluoxetine (FXT) and escitalopram (EST). The synthesized RCCuNPs nanocomposite morphology and structural composition were characterized by FEG-SEM along with EDS analysis. The electroanalytical behavior of the target analytes was investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The analytical range of detection of DOP, FXT, and EST was 0.05–5.0, 0.1–10, and 0.02–5.0 µmol L⁻¹, respectively. The limits of detection (LOD) were found to be 0.04, 0.05, and 0.25 µmol L⁻¹, respectively. In addition, the standard addition method was used for the detection and recovery of DOP in synthetic human urine and EST in tap water samples. The synergistic effect of CuNPs coupled with the highly porous RC material provided a sensitive, low-cost, and easy to prepare sensing platform for detecting target analytes in clinical and environmental samples.

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铜纳米结构锚定在可再生碳上作为检测多巴胺、氟西汀和艾司西酞普兰的电化学平台

首次采用化学还原法制备了纳米铜修饰的竹生物质可再生碳(RC)，用于多巴胺(DOP)、氟西汀(FXT)和艾司西酞普兰(EST)的电分析检测。采用FEG-SEM和EDS对合成的RCCuNPs纳米复合材料的形貌和结构组成进行了表征。采用循环伏安法(CV)和差分脉冲伏安法(DPV)研究了目标分析物的电分析行为。DOP、FXT和EST的检测范围分别为0.05 ~ 5.0、0.1 ~ 10和0.02 ~ 5.0µmol L−1。检出限(LOD)分别为0.04、0.05和0.25µmol L−1。另外，采用标准添加法对人合成尿液中的DOP和自来水样品中的EST进行检测和回收。CuNPs与高孔RC材料的协同效应为检测临床和环境样品中的目标分析物提供了一个敏感、低成本、易于制备的传感平台。

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来源期刊

Sensors and Actuators Reports Multiple-

CiteScore

9.60

自引率

0.00%

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审稿时长

49 days

期刊介绍： Sensors and Actuators Reports is a peer-reviewed open access journal launched out from the Sensors and Actuators journal family. Sensors and Actuators Reports is dedicated to publishing new and original works in the field of all type of sensors and actuators, including bio-, chemical-, physical-, and nano- sensors and actuators, which demonstrates significant progress beyond the current state of the art. The journal regularly publishes original research papers, reviews, and short communications. For research papers and short communications, the journal aims to publish the new and original work supported by experimental results and as such purely theoretical works are not accepted.