Simple and rapid capillarity-assisted ultra-trace detection of thiram on apple surface with a silver nanoparticles/filter paper SERS substrate

Jun Cheng; Shunqian Zhuang; Zhewen Luo; Songting Chen; Yao Shen; Jian Ye; Zhilong Yu; Tiancong Zhao; Yunfei Xie

doi:10.1016/j.jhazmat.2024.136945

Simple and rapid capillarity-assisted ultra-trace detection of thiram on apple surface with a silver nanoparticles/filter paper SERS substrate

J Hazard Mater. 2024 Dec 18:485:136945. doi: 10.1016/j.jhazmat.2024.136945. Online ahead of print.

Authors

Jun Cheng¹, Shunqian Zhuang¹, Zhewen Luo², Songting Chen¹, Yao Shen¹, Jian Ye², Zhilong Yu¹, Tiancong Zhao³, Yunfei Xie⁴

Affiliations

¹ State Key Laboratory of Food Science and Resources, Jiangnan University, No. 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, China; School of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, China.
² School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
³ School of Chemistry and Materials, Department of Chemistry, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China. Electronic address: tczhao@fudan.edu.cn.
⁴ State Key Laboratory of Food Science and Resources, Jiangnan University, No. 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, China; School of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, China. Electronic address: xieyunfei@jiangnan.edu.cn.

PMID: 39708602
DOI: 10.1016/j.jhazmat.2024.136945

Abstract

Thiram is a readily synthesized, cost-effective antimicrobial agent widely used to control diseases in fruits and vegetables. Given the potential health hazards associated with thiram residues and advancements in detection methods, it is crucial to develop a rapid and sensitive technique for detecting these residues on fruit surfaces. Here, we prepared the Ag@filter paper (Ag@FP) surface-enhanced Raman scattering (SERS) substrate in a controlled manner and innovatively developed a capillarity-assisted SERS (CA-SERS) detection method. Sampling can be completed in less than 1 min by either wiping or using the CA-SERS method. Utilizing a portable Raman device, the detection limit for thiram residues on apple surfaces can reach as low as 0.005 ng/cm² with the CA-SERS detection method. Furthermore, the substrate is cost-effective, can be prepared in just 7 min, and remains stable at room temperature for up to 40 days. Additionally, we developed a cost-effective, centimeter-scale auxiliary detection device to facilitate efficient on-site detection.

Keywords: SERS; Testing methods; Thiram; Ultrafast; Ultrasensitive.