Bimetallic AuNR@AgNCs for ultrasensitive surface-enhanced Raman scattering sensing of dithianon in apple juice

被引：5

作者：

Zheng, Kaiyi ^{[1
]}

Shen, Ye ^{[1
]}

Chen, Zhiyang ^{[1
]}

Zhao, Lina ^{[1
]}

Li, Zhihua ^{[1
]}

Huang, Xiaowei ^{[1
]}

Shi, Jiyong ^{[1
]}

Zhang, Yang ^{[1
]}

Xu, Xuechao ^{[2
]}

Zhu, Zitao ^{[2
]}

Jiang, Zhaoqiong ^{[4
]}

Zhang, Meng ^{[3
]}

Zou, Xiaobo ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Jiangsu, Peoples R China

[2] Yangzhou Univ, Sch Food Sci & Engn, Yangzhou 225127, Jiangsu, Peoples R China

[3] East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China

[4] Minist Agr & Rural Affairs, Key Lab Agr Equipment Technol Hilly & Mountainous, Chengdu 610066, Peoples R China

来源：

ANALYTICA CHIMICA ACTA | 2024年 / 1292卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

SERS; AuNR@AgNCs; Core-shell nanocuboid; Dithianon; Density functional theory; DEGRADATION;

D O I：

10.1016/j.aca.2023.342199

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this study, a bimetallic surfaced -enhanced Raman spectroscopy (SERS)-active substrate consisting of AuNR@AgNCs was proposed for the rapid detection of dithianon. Due to the significant synergistic enhancement of the core -shell nanocuboids, the obtained AuNR@AgNC substrate exhibited excellent SERS performance. The simulation findings supported the practical SERS results and demonstrated that interactions were mainly maintained by the nitrile functional group. The AuNR@AgNCs could be used to detect dithianon with an LOD value of 20 nM. Moreover, dithianon in river water and apple juice could be detected with recovery in the satisfactory ranges of 97.41%-98.35% and 97.77%-98.70%, respectively, by using this substrate under optimal conditions, indicating that the AuNR@AgNC substrate could serve as an excellent SERS detection platform for pesticide residues in fruit.

引用

页数：11

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