绿色碳点/CaCO3/Abamectin体杀虫剂配方,用于更安全,更有效的害虫防治
Chuang Chen1,2, Guopeng Teng1,2, Weicheng Shen1
1School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, P. R. China.
ACS nano
|December 21, 2024
概括
这项研究引入了一种新型的绿色合性农药,使用氨酸衍生碳点 (LysCDs) 修改的CaCO3颗粒来输送abamectin. 该配方提高了农药的有效性,光稳定性和抗雨性,同时降低了对非标生物的毒性.
科学领域:
- 绿色化学和材料科学 绿色化学和材料科学
- 农业化学和害虫管理
背景情况:
- 理想的绿色农药配方需要良好的分散性,叶子亲和力,受控释放,光稳定性,抗雨性和最小的非目标毒性.
- 现有的配方往往不符合这些绿色化学原理,需要创新的载体系统.
研究的目的:
- 开发一种绿色的合性农药配方,使用氨酸衍生碳点 (LysCDs) 修饰的CaCO3颗粒作为abamectin的载体.
- 评估该新型配方的增强载荷能力,受控释放,光稳定性,耐雨性和害虫防治有效性.
- 评估开发的合性农药的非目标毒性和环境影响.
主要方法:
- 使用优化LysCDs修饰的CaCO3 (LysCDs/CaCO3) 颗粒和阿巴麦丁 (Abm) 制备状农药配方.
- 描述阿巴麦克丁的负载能力,特定表面积和孔隙体积.
- 关于酸诱导的阿巴麦克丁释放动力学和光变化的体外研究.
- 在紫外线和模拟降雨下对光稳定性,叶子粘合性和抗雨性进行评估.
- 对室内和室外环境中的Plutella xylostella进行害虫控制有效性测试.
- 使用斑马鱼和虫进行非目标毒性评估.
主要成果:
- 由于表面积和毛孔体积的增加,LysCDs/CaCO3/Abm与CaCO3/Abm相比显示出1.72.1倍的阿巴麦丁载荷能力.
- 在弱酸性条件下加速的阿巴麦克丁释放,与Ca2+离子释放和LysCDs光变化.
- 增强光稳定性和叶子粘合性,导致叶子在紫外线和降雨下保持优势.
- 在实验室和现场条件下对Plutella xylostella进行最高的害虫控制性能.
- 与自由亚巴麦丁相比,对斑马鱼和地的急性毒性较低.
- 释放后最小的辅助剂残留物,转化为无害的Ca2+,CO2和LysCDs.
结论:
- 这种LysCDs/CaCO3/Abm配方在开发更安全,更有效的绿色体农药方面取得了重大进展.
- 该配方在有效性,环境稳定性和减少非目标毒性方面表现出色.
- 这种"循环和绿色"的方法将辅助剂残留量最小化,与可持续农业实践保持一致.
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