Fabrication of a non-enzymatic photoelectrochemical sensor based on a BiOBr-CuO nanocomposite for detecting Glucose and Tetracycline

被引：0

作者：

D, AnnieCanisius ^{[1
,2
]}

P, Joselene Suzan Jennifer ^{[1
]}

M, Joe Raja Ruban ^{[1
,2
]}

Varghese, Davis ^{[1
,2
]}

M, Gladys Joysi ^{[3
]}

S, Muthupandi ^{[4
]}

J, Madhavan ^{[1
]}

M, Victor Antony Raj ^{[1
,2
]}

Muthupandian, Saravanan ^{[5
,6
,7
]}

机构：

[1] Department of Physics, Loyola College, Affiliated to University of Madras, Chennai

[2] Loyola Institute of Frontier Energy, Loyola College, Chennai

[3] Department of Physics, Government Arts College for Men, Affiliated to University of Madras, Nandanam, Chennai

[4] Center for Global Health Research, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Thandalam, Tamil Nadu, Chennai

[5] Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk

[6] Prince Fahad bin Sultan Chair for Biomedical Research, University of Tabuk, Tabuk

[7] AMR and Nanotherpeutics Lab, Department of Pharmacology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Tamil Nadu, Chennai

来源：

Sensors International | 2025年 / 6卷

关键词：

Glucose sensor; Nanocomposites; p-p heterojunction; Photoelectrochemical; Tetracycline;

D O I：

10.1016/j.sintl.2024.100310

中图分类号：

学科分类号：

摘要：

In this study, we developed a non-enzymatic photoelectrochemical sensor using a BiOBr-CuO (BiCu) electrode, which was synthesized via solvothermal method. The sensor was designed for the simultaneous detection of glucose and tetracycline. Our study revealed that the BiCu electrode exhibited superior photocurrent generation compared to the individual BiOBr and CuO electrodes, as demonstrated by cyclic voltammetry and amperometric studies. The BiCu electrode's performance has increased due to the formation of a heterojunction between CuO and BiOBr, which modifies the UV–visible DRS spectrum and generates an internal electric field that reduces the recombination of the photogenerated carriers. This enhanced the capability of the sensor to detect both glucose and tetracycline. We successfully applied the proposed photoelectrochemical sensor to detect human blood glucose level. The sensitivity and detection limit for glucose and tetracycline are 0.1342 mAmM−1cm−2, 0.014 mM and 1.7234 mAmM−1cm−2, 2.0 μM respectively. Thus, the fabricated electrode demonstrated exceptional catalytic activity, high selectivity, good reproducibility, wide linear detection range, low limit of detection,long-term stability, ease of synthesis, good stability and notable selectivity for detecting both glucose and tetracycline This suggests that the BiCu electrode has significant potential as a reliable platform for the detection of glucose and tetracycline. © 2024 The Authors

引用

共 61 条

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