Preparation, Characterization, and Evaluation of Pyraclostrobin Nanocapsules by In Situ Polymerization

文献类型： 外文期刊

第一作者： Huang, Bingna

作者： Huang, Bingna;Chen, Feifei;Shen, Yue;An, Changcheng;Li, Ningjun;Jiang, Jiajun;Wang, Chong;Sun, Changjiao;Zhao, Xiang;Cui, Bo;Zeng, Zhanghua;Cui, Haixin;Wang, Yan

作者机构：

关键词： pyraclostrobin; nanotechnology; pesticide nanocapsules; in situ polymerization

期刊名称：NANOMATERIALS （ 影响因子：5.719； 五年影响因子：5.81 ）

ISSN：

年卷期： 2022 年 12 卷 3 期

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收录情况： SCI

摘要： In this study, pyraclostrobin nanocapsules were prepared by in situ polymerization with urea-formaldehyde resin as a wall material. The effects of different emulsifiers, emulsifier concentrations, and solvents on the physicochemical properties of pyraclostrobin nanocapsules were investigated. Solvesso (TM) 100 was selected as the solvent, and Emulsifier 600# was used as the emulsifier, which accounted for 5% of the aqueous phase system, to prepare pyraclostrobin nanocapsules with excellent physical and chemical properties. The particle size, zeta potential, and morphology of the nanocapsules were characterized by a particle size analyzer and transmission electron microscope. The nanocapsules were analyzed by Fourier-transform infrared spectroscopy, and the loading content and sustained release properties of the nanocapsules were measured. The results show that the size of the prepared nanocapsules was 261.87 nm, and the polydispersity index (PDI) was 0.12, presenting a uniform spherical appearance. The loading content of the pyraclostrobin nanocapsules was 14.3%, and their cumulative release rate was 70.99% at 250 h, providing better efficacy and sustainability compared with the pyraclostrobin commercial formulation.

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