An Iron-Based Metal–Organic Framework as Nanocarrier for Lambda-Cyhalothrin Delivery: pH-Responsive Controlled Release, Enhanced Leaf Adhesion, and Prolonged Duration Period against Culex pipiens pallens

IF 3.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Langmuir Pub Date : 2025-05-22 DOI:10.1021/acs.langmuir.5c0145110.1021/acs.langmuir.5c01451

Rong Zhao, Wei Jia, Youfa Jiang, Xiaoju Wu, Xuefeng Jiang, Saijie Song*, Jun Zhang*, He Shen* and Jian Shen*,

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引用次数: 0

Abstract

Lambda-Cyhalothrin (LC) is a high-efficiency and broad-spectrum insecticide. However, due to its poor water dispersion stability and unstable efficacy, it has many problems in practical applications. Therefore, there is an urgent need to develop new formulations with stability, low toxicity, and environmental friendliness to overcome the drawbacks of traditional pesticide formulations. This study designed an iron-based metal–organic framework (MIL-101(Fe)) as a nanocarrier for the loading of LC and then surface modified it with polydopamine (PDA) to form the nanopesticide PDA-LC-MIL. The results showed that PDA-LC-MIL has good stability and can achieve controlled release of pesticide by adjusting the pH value. In addition, it also has a good leaf affinity and can effectively adhere on crop leaves, improving the utilization rate of pesticides. The insecticidal experimental results indicate that PDA-LC-MIL has significantly improved sustained insecticidal activity. PDA-LC-MIL also has good biocompatibility and shows no significant inhibitory effect on seed germination and seedling growth of Vigna radiata (L.) Wilczek and maize. Therefore, we firmly believe that MIL-based nanopesticides will have broad application prospects in the field of green pesticides and modern agriculture.

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铁基金属-有机骨架纳米载体对淡色库蚊高效氯氟氰菊酯的ph响应控释、增强叶片粘附力和长效作用

高效氯氟氰菊酯（LC）是一种高效广谱杀虫剂。但由于其水分散稳定性差，功效不稳定，在实际应用中存在许多问题。因此，迫切需要开发稳定、低毒、环保的新型农药制剂来克服传统农药制剂的弊端。本研究设计了一种铁基金属有机骨架（MIL-101(Fe)）作为负载LC的纳米载体，然后用聚多巴胺（PDA）对其进行表面修饰，形成纳米农药PDA-LC- mil。结果表明，PDA-LC-MIL稳定性好，可通过调节pH值实现农药控释。此外，它还具有良好的叶片亲和性，能有效粘附在作物叶片上，提高农药的利用率。杀虫实验结果表明，PDA-LC-MIL显著提高了持续杀虫活性。同时，PDA-LC-MIL具有良好的生物相容性，对辐射豇豆种子萌发和幼苗生长无明显抑制作用。威尔切克和玉米。因此，我们坚信mil基纳米农药在绿色农药和现代农业领域具有广阔的应用前景。

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来源期刊

Langmuir 化学-材料科学：综合

CiteScore

6.50

自引率

10.30%

发文量

1464

审稿时长

2.1 months

期刊介绍： Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).