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使用二硫化钼/多壁碳纳米管（MoS@MWCNT）纳米复合电极对尿酸进行电化学测定。

Electrochemical Determination of Uric Acid Using a Nanocomposite Electrode with Molybdenum Disulfide/Multiwalled Carbon Nanotubes (MoS@MWCNT).

作者信息

Penagos-Llanos Johisner, Segura Rodrigo, de la Vega Amaya Paz, Pichun Bryan, Liendo Fabiana, Riesco Fernando, Nagles Edgar

机构信息

Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Santiago 9170002, Chile.

Facultad de Química e Ingeniería Química, Universidad Nacional Mayor de San Marcos, Lima 15081, Peru.

出版信息

Nanomaterials (Basel). 2024 May 30;14(11):958. doi: 10.3390/nano14110958.

DOI:10.3390/nano14110958
PMID:38869583
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11173421/
Abstract

This paper presents an application for a molybdenum disulfide nanomaterial with multiwalled carbon nanotubes (MoS@MWCNT/E) in a modified electrode substrate for the detection of uric acid (UA). The modified electrode generates a substantial three-fold increase in the anodic peak current for UA compared to the unmodified MWCNT electrode (MWCNT/E). The MoS@MWCNT/E surface was characterized by cyclic voltammetry (CV), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS) and electrochemical impedance spectroscopy (EIS). The achieved detection limit stood at 0.04 µmol/L, with a relative standard deviation (RSD) of 2.0% (n = 10). The method's accuracy, assessed through relative error and percent recovery, was validated using a urine standard solution spiked with known quantities of UA.

摘要

本文介绍了一种二硫化钼纳米材料与多壁碳纳米管（MoS@MWCNT/E）在修饰电极基底中用于检测尿酸（UA）的应用。与未修饰的多壁碳纳米管电极（MWCNT/E）相比，修饰电极使尿酸的阳极峰电流大幅增加了三倍。通过循环伏安法（CV）、扫描电子显微镜（SEM）、能量色散光谱（EDS）和电化学阻抗谱（EIS）对MoS@MWCNT/E表面进行了表征。实现的检测限为0.04 µmol/L，相对标准偏差（RSD）为2.0%（n = 10）。通过相对误差和回收率评估该方法的准确性，并使用添加了已知量尿酸的尿液标准溶液进行了验证。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/1945740bb4f1/nanomaterials-14-00958-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/39e5def91c49/nanomaterials-14-00958-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/079e6641fda8/nanomaterials-14-00958-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/97989eaa92ab/nanomaterials-14-00958-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/c127d53cec75/nanomaterials-14-00958-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/f6fcebcfc3cd/nanomaterials-14-00958-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/bb6672aae41e/nanomaterials-14-00958-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/4a5cf239211d/nanomaterials-14-00958-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/2efe6e95212a/nanomaterials-14-00958-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/1945740bb4f1/nanomaterials-14-00958-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/39e5def91c49/nanomaterials-14-00958-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/5659243e1f00/nanomaterials-14-00958-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/3628b9527eb1/nanomaterials-14-00958-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/079e6641fda8/nanomaterials-14-00958-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/97989eaa92ab/nanomaterials-14-00958-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/c127d53cec75/nanomaterials-14-00958-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/f6fcebcfc3cd/nanomaterials-14-00958-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/bb6672aae41e/nanomaterials-14-00958-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/4a5cf239211d/nanomaterials-14-00958-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/2efe6e95212a/nanomaterials-14-00958-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/837c/11173421/1945740bb4f1/nanomaterials-14-00958-g010.jpg

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