合成,优化和表征菌衍生的银纳米颗粒,以增强大米种子发芽
Maheswari Behera1, Devi Prasad Samantaray2, Lakshmi Singh1
1Department of Botany, College of Basic Science and Humanities, Odisha University of Agriculture and Technology, Bhubaneswar, India.
Chemistry & biodiversity
|August 30, 2025
概括
绿色合成的银纳米颗粒 (AgNP) 使用菌提供了一个可持续的农业解决方案. 这些环保的AgNP增强了米种子的发芽和苗木的活力,促进了作物产量.
科学领域:
- 绿色化学
- 纳米技术
- 农业科学
背景情况:
- 纳米技术为可持续农业提供了创新策略.
- 金属纳米粒子,特别是银纳米粒子 (AgNP),具有独特的物理化学性质.
- 传统的AgNP合成方法通常涉及有毒化学物质和恶劣的条件.
研究的目的:
- 开发一种环保的方法来利用蓝藻菌提取物合成AgNP.
- 优化合成参数以实现高效的AgNP生产.
- 评估蓝菌衍生的AgNP在增强米种子发芽和苗木活力的有效性.
主要方法:
- 使用Westiellopsis ramosa和Nostoc公社的水性提取物进行Ag NP的绿色合成
- 优化反应参数,包括pH,温度,AgNO3度,提取物体积和反应时间.
- 使用UV-Vis,FTIR,DLS,TEM,EDAX,FESEM和LC-HRMS进行合成的AgNP的表征.
主要成果:
- 通过光谱和显微分析支持Ag NP形成的视觉确认.
- 菌提取物中的生物活性化合物的识别,负责减少和限制.
- W. ramosa Ag NPs (70μg/mL) 和N. commune Ag NPs (60μg/mL) 的最佳度显著提高了米种子的发芽和幼苗的活力.
- 在50μg/ml以上的度下观察到细胞毒性.
结论:
- 基于菌的绿色合成为AgNP生产提供了安全,低毒性和环保的替代方案.
- 合成的AgNP显示出改善种子发芽和作物产量的巨大潜力.
- 这种方法突显了绿色纳米技术在应对全球农业挑战方面的承诺.
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