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Copper-Driven Formation of Prothioconazole Nanocomplex: An Innovative Strategy to Prepare Nanopesticide with Improved Bioactivity and Reduced Environmental Impacts

文献类型： 外文期刊

作者： Xu, Chunli 1 ; Cao, Lidong 1 ; Chen, Huiping 1 ; Liu, Tingting 1 ; Liang, Wenlong 2 ; Li, Yuanbo 1 ;

作者机构： 1.Chinese Acad Agr Sci, Key Lab Integrated Pest Management Crops, Minist Agr, Inst Plant Protect, 2 Yuanmingyuan West Rd, Beijing 100193, Peoples R China

2.Univ Twente, MESA Inst Nanotechnol, Fac Sci & Technol, Sustainable Polymer Chem,Dept Mol & Mat, POB 217, NL-7500 AE Enschede, Netherlands

3.Chinese Acad Agr Sci, Zhongyuan Res Ctr, Xinxiang 453500, Peoples R China

关键词： chelation; copper salts; nanocomplex; nanopesticide; prothioconazole

期刊名称：SMALL （ 影响因子：12.1； 五年影响因子：12.5 ）

ISSN： 1613-6810

年卷期： 2024 年 20 卷 52 期

页码：

收录情况： SCI

摘要： Developing cost-effective, energy-saving, and eco-friendly methods to construct nanopesticides fulfill the requirement of modern agriculture. Benefiting from the versatility of metal-based complexes, a facile copper-driven method is discovered for the formation of a fungicide prothioconazole nanocomplex (Cu-Pro) with the particle size of approximate to 300 +/- 85 nm. Interestingly, adding 0.5-1% of anionic surfactants could generate nanocomplexes within 60 +/- 12 nm and form stable dispersed nanosuspensions. Both nanocomplexes exhibit remarkable control efficacy against six plant pathogenic fungi, and the EC50 values are 1.4-4.8 times lower than that of prothioconazole technical concentrate (Pro TC). In addition, the novel nanocomplexes demonstrate better resistance against UV irradiation and the half-lives are 3.27- and 1.56-times longer than that of Pro TC, respectively. The acute toxicity of prothioconazole nanocomplexes against non-target organism zebrafish is decreased. Due to the small size and chelation with metals, the uptake and accumulation of prothioconazole in wheat plant is promoted, and the metabolites prothioconazole-desthio is significantly decreased by 42-48% than that of Pro TC. This metal coordination-based strategy seeks to open a new avenue for the high-throughput preparation of nanopesticides, providing an innovative toolbox for reducing the input of agrochemicals in sustainable plant protection. Nanopesticide is a potential way to tackle the major obstacle of current agrochemical. Without tedious preparation technologies like nanocarrier-based-nanopesticide, herein, prothioconazole nanopesticide is prepared by a facile copper-driven method, and its size can be adjusted by surfactants. Significantly, the nanopesticide posseses better antifungal, and reduces environmental impacts. This metal coordination-based strategy opening a novel avenue to prepare nanopesticides in sustainable agriculture. image

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