化学动力学金属-酚类纳米农药对植物病原体进行原位过氧化氢自供,以实现食品可持续性

IF 7.3 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Mingyao Wang, Xiao Yang, Tingting Gou, Tao Huang, Xiaoling Wang*, Qichang Yang and Junling Guo*, 
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引用次数: 0

摘要

为了食品的可持续性,人们越来越依赖杀虫剂,这导致了环境污染和食品安全问题。在此,我们提出了一种化学动力学策略,利用 Fenton 型纳米农药(称为金属酚类 ROS 纳米发生器(nanoRSG))来增强对两种广泛传播的植物病原体(假单胞菌 syringae 和镰孢菌 Fusarium oxysporum)的控制。纳米 RSG 是通过天然多酚和 Cu2+ 离子的超分子自组装构建的,然后在 H2O2 的存在下,借助氢氧根离子原位转变为酚类稳定的 CuO2 纳米团簇。随后,纳米 RSG 在病原体相关的微环境中分解为 Fenton 催化的 H2O2 和 Cu2+ 离子,再通过高效的 Fenton 反应生成 -O2- 来破坏病原体细胞膜。在番茄叶片上对 P. syringae 和 F. oxysporum 的治疗效果方面,纳米 RSG 优于商用 Kocide 3000 配方,药效分别提高了 94.7% 和 86.9%。此外,纳米 RSG 对番茄根部的防治效果(87.8% 和 78.9%)也优于 Kocide 3000(31.3% 和 43.9%)。此外,对斑马鱼的毒性测试和水培生菜的现场试验也证实了 nanoRSG 的生物安全性。我们的研究结果表明,金属酚纳米化策略为传统农药的创新和提高食品可持续性提供了一种前景广阔的配方。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Chemodynamic Metal-Phenolic Nanopesticide Performs In Situ Hydrogen Peroxide Self-Supply against Plant Pathogens for Food Sustainability

Chemodynamic Metal-Phenolic Nanopesticide Performs In Situ Hydrogen Peroxide Self-Supply against Plant Pathogens for Food Sustainability

The growing reliance on pesticides for food sustainability has led to environmental pollution and food safety concerns. Herein, we present a chemodynamic strategy using a Fenton-type nanopesticide, referred to as metal-phenolic ROS-nanogenerator (nanoRSG), to enhance the control of two widely spreading plant pathogens (Pseudomonas syringae and Fusarium oxysporum). The nanoRSG is constructed by the supramolecular self-assembly of natural polyphenols and Cu2+ ions, followed by an in situ transition into phenolic-stabilized CuO2 nanoclusters with the aid of hydroxide ions in the presence of H2O2. Subsequently, the nanoRSG decomposes in the pathogenic-relevant microenvironment into Fenton-catalyzed H2O2 and Cu2+ ions, followed by the highly efficient Fenton reactions for generating •O2 to damage pathogenic cell membranes. Regarding curative effects on tomato leaves against P. syringae and F. oxysporum, nanoRSG outperforms the commercial Kocide 3000 formulations with 94.7 and 86.9% increasing efficacy, respectively. Moreover, for curative activity on tomato roots, nanoRSG also has a better performance (87.8 and 78.9%) than Kocide 3000 (31.3 and 43.9%). Besides, the biosafety of nanoRSG is confirmed by toxicity tests in zebrafish and lettuce cultivation in a field test of hydroponics. Our findings demonstrate that the metal-phenolic nanoenabled strategy offers a promising formulation for innovating conventional pesticides and enhancing food sustainability.

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来源期刊
ACS Sustainable Chemistry & Engineering
ACS Sustainable Chemistry & Engineering CHEMISTRY, MULTIDISCIPLINARY-ENGINEERING, CHEMICAL
CiteScore
13.80
自引率
4.80%
发文量
1470
审稿时长
1.7 months
期刊介绍: ACS Sustainable Chemistry & Engineering is a prestigious weekly peer-reviewed scientific journal published by the American Chemical Society. Dedicated to advancing the principles of green chemistry and green engineering, it covers a wide array of research topics including green chemistry, green engineering, biomass, alternative energy, and life cycle assessment. The journal welcomes submissions in various formats, including Letters, Articles, Features, and Perspectives (Reviews), that address the challenges of sustainability in the chemical enterprise and contribute to the advancement of sustainable practices. Join us in shaping the future of sustainable chemistry and engineering.
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