In this work, a type of magnetic-responsive controlled-release herbicide (MCRH) was developed using a nanocomposite including palygorskite (Pal), ferroferric oxide (Fe₃O₄), glyphosate (Gly), and amino silicon oil (ASO). In this system, Pal with the structure of micro/nanonetworks can bind a large quantity of Gly and Fe₃O₄. The movement of Fe₃O₄ particles can be driven by a magnetic field to ensure the controlled release of pesticides. Gly, which is a type of nonselective herbicide, is widely used for weed control. In addition, ASO was selected as the coating agent to prevent Gly from rapidly releasing. In this work, the effects of the magnetic field, temperature, and coexisting ions on the release ratio of pesticides were investigated, and the results suggest that MCRH could effectively improve the utilization efficiency (UE) of Gly. In addition, zebrafish experiments indicate that MCRH has better biosafety than Gly.

在这项工作中，使用包括坡缕石 (Pal)、四氧化_三铁 (Fe ₃ O ₄ )、草甘膦 (Gly) 和氨基硅油 (ASO)的纳米复合材料开发了一种磁响应控释除草剂 (MCRH )。在该系统中，具有微/纳米网络结构的Pal可以结合大量的Gly和Fe ₃ O ₄。Fe ₃ O ₄的运动粒子可以通过磁场驱动，以确保农药的受控释放。Gly 是一种非选择性除草剂，广泛用于杂草控制。此外，选择ASO作为包衣剂以防止Gly快速释放。在这项工作中，研究了磁场、温度和共存离子对农药释放率的影响，结果表明 MCRH 可以有效提高 Gly 的利用效率 (UE)。此外，斑马鱼实验表明，MCRH 比 Gly 具有更好的生物安全性。