数字农科院2.0

Temperature-responsive composite delivery system with efficient epidermal adhesion for enhanced insecticidal activity

文献类型： 外文期刊

作者： Meixue Sun;Yingjie Liu;Yonghui Zhang;Wenlong Feng;Hailin Yang;Guangwei Ren;Pengjun Xu;Xiufang Wang;Chenyu Su

作者机构：

关键词： Biosafety;Graphene oxide;Nanohydrogel;Pest control;Temperature-responsive

期刊名称： Chemical Engineering Journal

ISSN： 1385-8947

年卷期： 2025 年 524 卷

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Faced with the threat of potential agricultural pest outbreaks, chemical insecticides remain the fastest and most effective means to ensure agricultural safety and food supply. However, the low utilization rate of traditional chemical insecticides has made it difficult to achieve ideal pest control outcomes. This research proposed a strategy based on a temperature-responsive controlled release system to improve insecticide utilization for lepidopteran pest control. Specifically, chlorantraniliprole (CAP) was loaded onto graphene oxide (GO) to prepare the nano-pesticide CAP@GO, which was then further encapsulated into a temperature- responsive nanohydrogel, forming CAP@GO@NH. The results showed that GO exhibited a CAP loading efficiency of up to 68.7 %, due to its sheet-like structure, was able to easily penetrate the pest tegument to enhance insecticidal activity, thereby increasing the toxicity of CAP by 23.3 %. The hydrogel significantly improved surface adhesion and rain resistance, while its temperature- responsive property ensured the precise release under high temperature conditions when pest activity was rampant. In addition, biosafety tests indicated that both the system exhibited high safety for natural enemy insect. This study provided a new strategy for the efficient delivery of chemical insecticides, effectively enhancing pest control efficiency, reducing pesticide usage, and mitigating environmental impacts.

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