数字农科院2.0

Bioinspired Development Of P(St-Maa)-Avermectin Nanoparticles W.ith High Affinity For F oliage To Enhance Folia Retention

文献类型： 外文期刊

作者： Liang, J; Yu, ML; Guo, LY; Cui, B; Zhao, X; Sun, CJ; Wang, Y; Liu, GQ; Cui, HX; Zeng, ZH

作者机构：

关键词： bioinspired; pesticide nanoparticles; foliage adhesion; folio retention; avermectins

期刊名称： JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY

ISSN： 0021-8561

年卷期： 2018 年 66 卷 26 期

页码：

收录情况： JCR（2021版） ; EI（2021版）

摘要： Pesticides are chemical or biological substances to control pests and protect the crop yield. Most pesticides suffering from large amounts of losses in the environment lead to damage of ecological systems and food pollution. To reduce their losses and increase the utilization rate, we have developed bioinspired mussel avermectin nanoparticles [P(St-MAA)-Av-Cat] with strong adhesion to crop foliage by the emulsion solvent evaporation method and chemical modification. They were near spheres with a diameter of around 120 nm. They displayed remarkable high avermectin content of more than 50% (w/w) and presented excellent storage stability as well as continuous sustained release. The photosensitive avermectins loaded were highly improved against ultraviolet light. Meanwhile, the retention rate of P(St-MAA)-Av-Cat on the crop foliage surfaces was significantly increased. As a result, the indoor toxicity of P(St-MAA)-Av-Cat was highly enhanced. The adhesive property strongly depended upon the functional groups on the nanoparticle surface. The multimodal binding mode of P(St-MAA)-Av- Cat to the crop foliage surface resulted in stronger adhesion and a longer retention time.

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