基于半孔二氧化纳米颗粒的pH/酸酶双刺激响应精油输送系统,用于控制大米爆发
Yi Ding1,2, Jun Yuan1,2, Shuai Wu1,2
1Institute of Crop Protection, Guizhou University, Guiyang, China.
Pest management science
|February 15, 2024
概括
智能半孔纳米颗粒 (MSN) 已开发出用于输送 (CT) 精油,用于控制爆病. 该系统增强了CT的稳定性,并为应对植物疾病条件提供了可控释放.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 植物病理学 植物病理学
背景情况:
- 智能半孔纳米颗粒 (MSN) 为控制释放应用提供可调整的表面性能.
- 开发刺激反应系统对于在农业中有针对性地提供活性成分至关重要.
- 提高 (CT) 等精油的稳定性和有效性是可持续作物保护的关键.
研究的目的:
- 为 (CT) 精油制造一个双刺激响应的输送系统.
- 增强CT对抗大米爆发病的稳定性和抗真菌活性.
- 为了研究CT在对植物疾病相关刺激的反应中得到控制的释放.
主要方法:
- 用CT装载的空心半孔纳米颗粒 (CT@HMS) 涂上素 (CH) 和酸 (TA) 的制造,采用层次组装.
- 开发系统的粒子大小,纳米结构和负载效率的表征 (CT@HMS@CH/TA).
- 评估CT@HMS@CH/TA在紫外线照射下的稳定性及其在酸性pH值和奇丁酶存在下的释放概况.
主要成果:
- 成功合成了CT@HMS@CH/TA纳米粒子 (125.12nm) 具有高CT负载 (16.58%).
- 显示显著改善紫外线稳定性 (3.34倍增加) 和受pH和奇丁酶触发的受控释放.
- 观察到增强的粘附性,上调的酸酶基因表达和增加对Magnaporthe oryzae的酸酶活性,从而提高了抗真菌功效.
结论:
- 该CT@HMS@CH/TA系统提供了增强的CT稳定性和智能,可控释放.
- 这种纳米技术提供了一个有希望的战略,以使用精油来绿色和高效地控制爆病.
- 开发的系统提高了抗真菌的有效性,支持可持续的农业实践.
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