Using the photo-enhanced barrier effect on electrochemical response for highly sensitive detection of melamine

Yichang He; Yiquan Liao; Bin Zhang; Ruiqi Xu; Ye Ma; Minggang Zhao; Hongzhi Cui

doi:10.1016/j.foodchem.2023.137246

Using the photo-enhanced barrier effect on electrochemical response for highly sensitive detection of melamine

Food Chem. 2024 Jan 30:432:137246. doi: 10.1016/j.foodchem.2023.137246. Epub 2023 Aug 22.

Authors

Yichang He¹, Yiquan Liao², Bin Zhang³, Ruiqi Xu⁴, Ye Ma⁵, Minggang Zhao⁶, Hongzhi Cui⁷

Affiliations

¹ School of Materials Science and Engineering, Ocean University of China, 266100 Qingdao, PR China. Electronic address: 21211713056@stu.ouc.edu.cn.
² School of Materials Science and Engineering, Ocean University of China, 266100 Qingdao, PR China. Electronic address: liaoyq2594@163.com.
³ School of Materials Science and Engineering, Ocean University of China, 266100 Qingdao, PR China. Electronic address: zhangbin6117@163.com.
⁴ School of Materials Science and Engineering, Ocean University of China, 266100 Qingdao, PR China. Electronic address: xuruiqi66@163.com.
⁵ School of Materials Science and Engineering, Ocean University of China, 266100 Qingdao, PR China. Electronic address: maye@ouc.edu.cn.
⁶ School of Materials Science and Engineering, Ocean University of China, 266100 Qingdao, PR China. Electronic address: zhaomg@ouc.edu.cn.
⁷ School of Materials Science and Engineering, Ocean University of China, 266100 Qingdao, PR China. Electronic address: cuihongzhi@ouc.edu.cn.

PMID: 37643517
DOI: 10.1016/j.foodchem.2023.137246

Abstract

Melamine added to milk powder can lead to kidney injury and even death, but rapid detection is still hard due to the strong interference of milk powder solution. Herein, the CC/CeO₂/CNPs mesh was constructed to detect melamine by using the photo-enhanced barrier effects on electrochemical response. Schottky barrier was regulated effectively to produce electrochemical response to melamine by photo-induced electrostatic interaction, which exhibited strong resistance to interference in milk powder solution. Sensitivity was enhanced by nearly 5 times and the lowest detection limit was reduced as low as 0.274 nM. The obtained high recovery (100%-104%) and good stability in milk powder solution indicated the good potential for practical applications. It provides a new opportunity for achieving strong resistance to interference by using the photo-enhanced barrier driving effect on electrochemical response.

Keywords: Carbon nano-point; Energy barrier; Heterojunction; Melamine; Sensor.

MeSH terms

Powders
Static Electricity
Triazines*

Substances

melamine
Powders
Triazines