双金属MOF-基于混合平台,具有双刺激响应,用于持续释放和增强保留
Vinayak Hegde1, Mahesh P Bhat2, Jae-Ho Lee2
1Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea.
ACS applied materials & interfaces
|March 24, 2025
概括
这项研究引入了一种新的双刺激响应农药输送系统,使用铁铜双金属有机框架在藻土上,涂上劳里克酸. 这种先进的载体增强了农药的有效性,并减少了应用频率.
科学领域:
- 材料科学 材料科学 材料科学
- 农业化学 农业化学
- 纳米技术纳米技术
背景情况:
- 传统的农药载具承载能力低,释放速度快,性能不一致.
- 有效的农药输送系统对于对病原体作物保护至关重要.
研究的目的:
- 开发一种可响应双刺激的农药输送载体,以提高效率和控制释放.
- 为了提高农药的局部化和减少应用频率.
主要方法:
- 铁铜双金属有机框架 (Fe-Cu MOF) 在藻土 (DE) 上支并涂上酸 (LA) 的制造.
- 将 thiabendazole (Tbz) 农药装入 DE-MOF-LA 载体中.
- 对双刺激 (pH和温度) 的响应释放动力学的评估.
- 对 *Botrytis cinerea* 的 in vitro 抗真菌活性和对番茄植物的 in vivo 疗效的评估.
主要成果:
- 运输机实现了 38.14% 的高 thiabendazole 装载能力.
- 观察到受控释放:在pH 5下80.73%,在40°C下96.55%,表明对双刺激的反应性.
- 在体外有高的抑制 (92.26%) *Botrytis cinerea*和完全的 in vivo 抑制在番茄植物.
- 增强对植物叶子的附着性,减少雨水侵蚀.
结论:
- 开发的DE-MOF-Tbz-LA载体提供了一个有前途,高效和可控的农药输送系统.
- 这种创新方法解决了传统农药应用的局限性,改善了作物保护.
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