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Chemodynamic Metal-Phenolic Nanopesticide Performs In Situ Hydrogen Peroxide Self-Supply against Plant Pathogens for Food Sustainability

文献类型： 外文期刊

作者： Wang, Mingyao 1 ; Yang, Xiao 2 ; Gou, Tingting 1 ; Huang, Tao 2 ; Wang, Xiaoling 1 ; Yang, Qichang 2 ; Guo, Junling 1 ;

作者机构： 1.Sichuan Univ, Coll Biomass Sci & Engn, Natl Engn Lab Clean Technol Leather Manufacture, BMI Ctr Biomass Mat & Nanointerfaces,Minist Educ M, Chengdu 610065, Sichuan, Peoples R China

2.Chinese Acad Agr Sci IUA CAAS, Inst Urban Agr, Chengdu Natl Agr Sci & Technol Ctr, Chengdu 610213, Sichuan, Peoples R China

3.Sichuan Univ, State Key Lab Polymer Mat Engn, Chengdu 610065, Sichuan, Peoples R China

4.Univ British Columbia, Bioprod Inst, Dept Chem, Vancouver, BC V6T 1Z4, Canada

5.Univ British Columbia, Bioprod Inst, Dept Chem & Biol Engn, Vancouver, BC V6T 1Z4, Canada

关键词： self-assembly; metal-phenolic network; H2O2; plant pathogens; food sustainability

期刊名称：ACS SUSTAINABLE CHEMISTRY & ENGINEERING （ 影响因子：7.3； 五年影响因子：8.0 ）

ISSN： 2168-0485

年卷期： 2025 年 13 卷 14 期

页码：

收录情况： SCI

摘要： The growing reliance on pesticides for food sustainability has led to environmental pollution and food safety concerns. Herein, we present a chemodynamic strategy using a Fenton-type nanopesticide, referred to as metal-phenolic ROS-nanogenerator (nanoRSG), to enhance the control of two widely spreading plant pathogens (Pseudomonas syringae and Fusarium oxysporum). The nanoRSG is constructed by the supramolecular self-assembly of natural polyphenols and Cu2+ ions, followed by an in situ transition into phenolic-stabilized CuO2 nanoclusters with the aid of hydroxide ions in the presence of H2O2. Subsequently, the nanoRSG decomposes in the pathogenic-relevant microenvironment into Fenton-catalyzed H2O2 and Cu2+ ions, followed by the highly efficient Fenton reactions for generating center dot O-2(-) to damage pathogenic cell membranes. Regarding curative effects on tomato leaves against P. syringae and F. oxysporum, nanoRSG outperforms the commercial Kocide 3000 formulations with 94.7 and 86.9% increasing efficacy, respectively. Moreover, for curative activity on tomato roots, nanoRSG also has a better performance (87.8 and 78.9%) than Kocide 3000 (31.3 and 43.9%). Besides, the biosafety of nanoRSG is confirmed by toxicity tests in zebrafish and lettuce cultivation in a field test of hydroponics. Our findings demonstrate that the metal-phenolic nanoenabled strategy offers a promising formulation for innovating conventional pesticides and enhancing food sustainability.

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