Facile synthesis of Au@Ag core-shell nanorod with bimetallic synergistic effect for SERS detection of thiabendazole in fruit juice

Zhiyang Chen; Yue Sun; Jiyong Shi; Wen Zhang; Xinai Zhang; Xiaowei Huang; Xiaobo Zou; Zhihua Li; Ruicheng Wei

doi:10.1016/j.foodchem.2021.131276

Facile synthesis of Au@Ag core-shell nanorod with bimetallic synergistic effect for SERS detection of thiabendazole in fruit juice

Food Chem. 2022 Feb 15:370:131276. doi: 10.1016/j.foodchem.2021.131276. Epub 2021 Sep 30.

Authors

Zhiyang Chen¹, Yue Sun², Jiyong Shi², Wen Zhang², Xinai Zhang², Xiaowei Huang², Xiaobo Zou³, Zhihua Li⁴, Ruicheng Wei⁵

Affiliations

¹ Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, @, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, PR China.
² Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, @, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
³ Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, @, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China. Electronic address: zou_xiaobo@ujs.edu.cn.
⁴ Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, @, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China. Electronic address: lizh@ujs.edu.cn.
⁵ Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, @, Zhenjiang, Jiangsu 212013, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, PR China. Electronic address: rcwei79@jaas.ac.cn.

PMID: 34662790
DOI: 10.1016/j.foodchem.2021.131276

Abstract

This study presented an effective and sensitive SERS substrate for rapid detection of thiabendazole (TBZ) in fruit samples. A core-shell gold/silver nanorod (Au@Ag NRs) has been synthesized as a bimetallic SERS-active substrate. The obtained substrate showed an excellent SERS effect because of the tunable plasmon resonance of Au NRs, the significantly enhanced effect of silver, and the bimetallic synergistic effect of Au@Ag NRs. Under optimal conditions, the substrate was used to detect TBZ in fresh apple juice and peach juice with limits of detection of 0.032 and 0.034 ppm respectively. In addition, the recovery rate was within a satisfactory range of 95-101%, indicating that the Au@Ag NRs substrate could be a SERS detection platform for fruit pesticides residues with great development potential.

Keywords: Au@Ag core-shell nanorods; Fruit juice; SERS; Synergistic enhancement; Thiabendazole.

MeSH terms

Fruit and Vegetable Juices
Gold
Metal Nanoparticles*
Nanotubes*
Spectrum Analysis, Raman
Thiabendazole / analysis

Substances

Gold
Thiabendazole