Development of leaf-adhesive pesticide nanocapsules with pH-responsive release to enhance retention time on crop leaves and improve utilization efficiency

文献类型： 外文期刊

第一作者： Chen, Hongyan

作者： Chen, Hongyan;Zhi, Heng;Liang, Jie;Yu, Manli;Cui, Bo;Zhao, Xiang;Sun, Changjiao;Wang, Yan;Cui, Haixin;Zeng, Zhanghua

作者机构：

期刊名称：JOURNAL OF MATERIALS CHEMISTRY B （ 影响因子：6.331； 五年影响因子：5.726 ）

ISSN： 2050-750X

年卷期： 2021 年 9 卷 3 期

页码：

收录情况： SCI

摘要： Pesticides play a very important role in pest control and plant protection. However, they can be limited by a tendency to cause ecological system damage due to significant losses into the environment. To increase pesticide utilization efficiency, we developed highly leaf-adhesive avermectin nanocapsules (Av-pH-cat@CS) with pH-responsive controlled release properties. The Av-pH-cat@CS nanocapsules displayed good thermal stability and photostability in response to UV light irradiation. The Av-pH-cat@CS nanocapsules could be disrupted at low pH and they exhibited excellent controlled release in response to pH, which improved the release of avermectins. In addition, the Av-pH-cat@CS nanocapsules were highly adhesive to crop leaves as a result of strong hydrogen bonding, which prolonged the retention time on crop leaves. The Av-pH-cat@CS nanocapsules with pH-responsive release and strong leaf adhesion improved the control efficacy and enhanced the utilization efficiency. Our findings offer a promising approach to prolonging pesticide duration on crop leaves and improving the utilization efficiency.

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