数字农科院2.0

MPN-Modified Bimetallic ZIF Nanopesticide Enhances Dinotefuran Loading Efficiency and Synergistically Controls Pesticide Residue and Insecticidal Activity

文献类型： 外文期刊

作者： Sheng, Bin;Zhang, Ying;Yang, Kexin;Wen, Xiaobin;Lin, Zhihao;Wu, Zhijian;Zhang, Yaowei;Zhou, Jie;Ye, Xueling;Wang, Miao;Chen, Ge;Liu, Guangyang;Xu, Xiaomin;Yang, Xin;Jiao, Bining;Xu, Donghui

作者机构：

关键词： Bemisia tabaci;dinotefuran;nanocarrier;nanopesticide

期刊名称： ACS AGRICULTURAL SCIENCE & TECHNOLOGY

ISSN：

年卷期： 2025 年

页码：

收录情况： ESCI（2025版）

摘要： Neonicotinoid insecticides face a number of challenges in improving the efficacy and mitigating resistance in Bemisia tabaci. The zeolitic imidazolate framework (ZIF) in metal-organic frameworks (MOFs) has attracted much attention in the field of nanopesticide preparation and controlled release due to its simple preparation. However, monometallic ZIFs have a simple structure and low loading capacity. To solve this problem, we doped Fe into ZIF-L and successfully synthesized a cross-stacked bimetallic ZIF nanocarrier, which can effectively load and release dinotefuran (DNF). Subsequent preparation of Zn-Fe-ZIF@DNF@MPN after encapsulation using metal-phenolic networks (MPNs) increased the DNF loading to 23.74% and achieved >99% release within 24 h. Zn-Fe-ZIF@DNF@MPN has greater resistance to UV light, retention on vegetable leaves, and resistance to rainwater washout. Dynamic residue analysis confirmed its effectiveness and persistence. In addition, it achieved 86.95% mortality against Bemisia tabaci without inhibiting cabbage seed germination. This work is of strategic importance for the development of a functional and environmentally friendly smart nanopesticide.

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