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Spatiotemporal Visualization of Insecticides and Fungicides within Fruits and Vegetables Using Gold Nanoparticle-Immersed Paper Imprinting Mass Spectrometry Imaging

文献类型： 外文期刊

作者： Qin, Run 1 ; Li, Ping 1 ; Du, Mingyi 1 ; Ma, Lianlian 1 ; Huang, Yudi 1 ; Yin, Zhibin 3 ; Zhang, Yue 1 ; Chen, Dong 1 ; Xu, 1 ;

作者机构： 1.South China Agr Univ, Minist Educ, State Key Lab Conservat & Utilizat Subtrop Agrobi, Guangzhou 510642, Peoples R China

2.South China Agr Univ, Minist Educ, Key Lab Nat Pesticide & Chem Biol, Guangzhou 510642, Peoples R China

3.Guangdong Acad Agr Sci, Agrobiol Gene Res Ctr, Guangzhou 510640, Peoples R China

关键词： gold nanoparticles; paper imprinting; mass spectrometry imaging; food safety; pesticides; spatiotemporal visualization

期刊名称：NANOMATERIALS （ 影响因子：5.076； 五年影响因子：5.346 ）

ISSN：

年卷期： 2021 年 11 卷 5 期

页码：

收录情况： SCI

摘要： Food safety issues caused by pesticide residue have exerted far-reaching impacts on human daily life, yet the available detection methods normally focus on surface residue rather than pesticide penetration to the internal area of foods. Herein, we demonstrated gold nanoparticle (AuNP)-immersed paper imprinting mass spectrometry imaging (MSI) for monitoring pesticide migration behaviors in various fruits and vegetables (i.e., apple, cucumber, pepper, plum, carrot, and strawberry). By manually stamping food tissues onto AuNP-immersed paper, this method affords the spatiotemporal visualization of insecticides and fungicides within fruits and vegetables, avoiding tedious and time-consuming sample preparation. Using the established MSI platform, we can track the migration of insecticides and fungicides into the inner region of foods. The results revealed that both the octanol-water partition coefficient of pesticides and water content of garden stuffs could influence the discrepancy in the migration speed of pesticides into food kernels. Taken together, this nanopaper imprinting MSI is poised to be a powerful tool because of its simplicity, rapidity, and easy operation, offering the potential to facilitate further applications in food analysis. Moreover, new perspectives are given to provide guidelines for the rational design of novel pesticide candidates, reducing the risk of food safety issues caused by pesticide residue.

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