Electrochemical sensing of glucose and ascorbic acid via POM-based CNTs fiber electrode

被引：21

作者：

Muqaddas, Sheza ^{[1
]}

Aslam, Hira ^{[1
]}

Ul Hassan, Sadaf ^{[2
]}

Ashraf, Ahmad Raza ^{[3
]}

Asghar, Muhammad Adeel ^{[4
,8
]}

Ahmad, Muhammad ^{[3
]}

Nazir, Arif ^{[1
]}

Shoukat, Rizwan ^{[5
]}

Kaleli, Murat ^{[6
]}

Ibrahim, Sobhy Mostafa ^{[7
]}

Kyurekli, Salih ^{[6
]}

Haider, Ali ^{[4
]}

Ali, Abid ^{[1
]}

机构：

[1] Univ Lahore, Dept Chem, 1-km,Def Rd, Lahore 54000, Pakistan

[2] COMSATS Univ Islamabad, Dept Chem, Lahore Campus, Lahore, Pakistan

[3] Univ Educ, Dept Chem, Div Sci & Technol, Lahore, Pakistan

[4] Quaid I Azam Univ Islamabad, Dept Chem, Islamabad 45320, Pakistan

[5] Univ Cagliari, Dept Mech Chem & Mat Engn, Via Marengo 2, I-09123 Cagliari, CA, Italy

[6] Suleyman Demirel Univ, Fac Arts & Sci, Dept Phys, TR-32260 Isparta, Turkiye

[7] King Saud Univ, Coll Sci, Dept Biochem, POB 2455, Riyadh 11451, Saudi Arabia

[8] Grand Asian Univ, Dept Chem, 7 KM,Pasrur Rd, Sialkot, Pakistan

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2023年 / 293卷

关键词：

Polyoxometalates; CNTs fibers; Biosensors; Glucose; Ascorbic acid; NONENZYMATIC GLUCOSE; CARBON NANOTUBES; ENZYME; SENSOR; NANOSTRUCTURES; NANOCOMPOSITE; NANOPARTICLES; DEPOSITION; BIOSENSOR; OXIDASE;

D O I：

10.1016/j.mseb.2023.116446

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Wells-Dawson type cobalt-based Polyoxometalate (Co-POM) was deposited over carbon nanotube (CNTs) fiber and employed as an electrochemical sensor for the detection of glucose and ascorbic acid in basic media. Surface morphology and elemental composition of the developed electrode was studied by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). SEM images verified the homogenous covering of CoPOM over the surface of CNTs fiber. Electrochemical response of fabricated electrode was investigated via cyclic voltammetry and chronoamperometry in 0.1 M KOH solution. Electro-oxidation of glucose showed high sensitivity of 1000 & mu;AmM-1cm  2, low limit of detection 0.42 & mu;M and broad linear range of up to 23 mM with short response time of about 4 s. Furthermore, the fabricated electrode showed boosted sensing performance for ascorbic acid with a sensitivity of 300 & mu;AmM-1cm  2, detection limit of 0.10 & mu;M and 10 mM linear range with a response time of 5 s.

引用

页数：11

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