绿色氧化铜纳米颗粒对核桃储存害虫害管理的有效性
Maria Rosa Rodríguez1,2, Nieves Carolina Comelli1,3, Tamara Elizabeth López3
1Laboratorio de Control Biológico y Biodiversidad de Insectos (LACBBI), Centro Regional de Energía y Ambiente para el Desarrollo Sustentable (CREAS), CONICET-Universidad Nacional de Catamarca (UNCA), Prado 366, K4700BDH, San Fernando Del Valle de Catamarca, Argentina.
Chemistry & biodiversity
|September 5, 2024
概括
从植物提取物中合成的绿色氧化铜纳米颗粒 (CuO-NPs) 显示出强大的抗真菌和杀虫性能. 这些环保的CuO-NP提供了一个有前途的替代方案,用于在核桃储存中进行综合性害虫控制.
科学领域:
- 农业科学 农业科学
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 由于甲虫的入侵和随后的微生物破坏,核桃产量面临重大损失.
- 目前的合成杀虫剂对环境构成风险.
- 农业需要可持续的害虫管理解决方案.
研究的目的:
- 开发使用植物酸盐进行害虫控制的环保氧化铜纳米颗粒 (CuO-NPs).
- 评估合成的CuO-NPs的抗真菌和杀虫功效.
- 评估这些CuO-NP在核桃储存中的综合害虫防治方面的潜力.
主要方法:
- 使用Lippia integrifolia (CuO-I) 和Pimpinella anisum (CuO-A) 的水性提取物进行CuO-NP的绿色合成.
- 使用XRD,FT-IR,拉曼,紫外线可见吸收率和AFM对CuO-NP的表征.
- 抗真菌和杀虫剂测试以确定对相关害虫和真菌的有效性.
- 扫描电子显微镜 (SEM) 可视化纳米粒子与昆虫表面的相互作用.
主要成果:
- 合成的CuO-NP (CuO-A和CuO-I) 显示了从2-10纳米的尺寸.
- CuO-A和CuO-I都表现出显著的抗真菌活性,超过了没有植物提取物合成的CuO-NP.
- CuO-I显示了与藻土相比的杀虫活性,纳米颗粒附着在昆虫表面.
- SEM证实了纳米粒子的粘附,这表明昆虫的代谢过程被破坏了.
结论:
- 来自植物的CuO-NP对菌破坏者和影响核桃的昆虫害虫有效.
- 这些绿色合成的纳米粒子代表了一种可持续和环保的害虫防治方法.
- 在核桃储存中,CuO-A和CuO-I对综合性害虫防治策略显著有前途.
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