{"title":"Design of highly leaf-adhesive and anti-UV herbicide nanoformulation for enhanced herbicidal activity","authors":"Dongdong Li, Jianan Li, Hao Li, Zhendong Bai, Chujian Ma, Haodong Bai, Dingfeng Luo, Zuren Li, Lianyang Bai","doi":"10.1016/j.jare.2024.12.034","DOIUrl":null,"url":null,"abstract":"<h3>Introduction</h3>Conventional pesticide formulations have been widely used to boost agricultural productivity, but their weak foliar adhesion and instability under UV light during spraying lead to low utilization rates and potential environmental and health hazards. To counter these challenges, the development of nanoformulations represents a pivotal strategy. These advanced formulations are designed to enhance the efficacy of active ingredients (AIs) and reduce ecological impacts, thereby addressing the need for sustainable agricultural development.<h3>Objectives</h3>The study aims to fabricate a highly leaf-adhesive and anti-UV herbicide nanoformulation, designed to enhance the herbicidal activity and utilization rates of AIs.<h3>Methods</h3>Herein, the herbicide nanoformulations (Called CB@MSNs-TA-Fe) are synthesized by incorporating cyhalofop-butyl into tannic acid-Fe (III) ions-coated functionalized mesoporous silica. The foliar retention performance of the samples was assessed integrating SEM observation and HPLC analysis.<h3>Results</h3>The CB@MSNs-TA-Fe with rough outer surface displays typical core–shell structure featuring an average diameter of about 118 nm. After amino modification, the CB@MSNs-TA-Fe shows enhanced loading rate for CB (14.4 ± 0.2 %) and superior thermal stability. The release rate of CB within CB@MSNs-TA-Fe under acidic conditions is higher compared to that under alkaline and neutral conditions. Upon UV irradiation, the half-life of CB within CB@MSNs-TA-Fe nanoparticles is 12.4 times higher than that of CB technical (CB TC). Enhanced foliar adhesion of CB@MSNs-TA-Fe on hydrophobic leaf surfaces is observed, which can effectively mitigate the risk of wash-off by rainfall. The CB@MSNs-TA-Fe displays enhanced herbicidal efficacies against barnyard grass under UV irradiation or simulated rainwater scouring, compared with CB TC and CB oil dispersion. Furthermore, the TA-Fe-coated MSNs-NH<sub>2</sub> nano-carrier (MSNs-TA-Fe) reveals excellent biosafety on rice, zebrafish, and earthworms.<h3>Conclusion</h3>The developed TA-Fe-functionalized herbicide nanoformulations, with high foliar adhesion and anti-UV properties, effectively improve the utilization efficiency of AIs, thus offering innovative solutions for the development of efficient pesticide formulations.","PeriodicalId":14952,"journal":{"name":"Journal of Advanced Research","volume":"11 1","pages":""},"PeriodicalIF":11.4000,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Advanced Research","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.1016/j.jare.2024.12.034","RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Introduction
Conventional pesticide formulations have been widely used to boost agricultural productivity, but their weak foliar adhesion and instability under UV light during spraying lead to low utilization rates and potential environmental and health hazards. To counter these challenges, the development of nanoformulations represents a pivotal strategy. These advanced formulations are designed to enhance the efficacy of active ingredients (AIs) and reduce ecological impacts, thereby addressing the need for sustainable agricultural development.
Objectives
The study aims to fabricate a highly leaf-adhesive and anti-UV herbicide nanoformulation, designed to enhance the herbicidal activity and utilization rates of AIs.
Methods
Herein, the herbicide nanoformulations (Called CB@MSNs-TA-Fe) are synthesized by incorporating cyhalofop-butyl into tannic acid-Fe (III) ions-coated functionalized mesoporous silica. The foliar retention performance of the samples was assessed integrating SEM observation and HPLC analysis.
Results
The CB@MSNs-TA-Fe with rough outer surface displays typical core–shell structure featuring an average diameter of about 118 nm. After amino modification, the CB@MSNs-TA-Fe shows enhanced loading rate for CB (14.4 ± 0.2 %) and superior thermal stability. The release rate of CB within CB@MSNs-TA-Fe under acidic conditions is higher compared to that under alkaline and neutral conditions. Upon UV irradiation, the half-life of CB within CB@MSNs-TA-Fe nanoparticles is 12.4 times higher than that of CB technical (CB TC). Enhanced foliar adhesion of CB@MSNs-TA-Fe on hydrophobic leaf surfaces is observed, which can effectively mitigate the risk of wash-off by rainfall. The CB@MSNs-TA-Fe displays enhanced herbicidal efficacies against barnyard grass under UV irradiation or simulated rainwater scouring, compared with CB TC and CB oil dispersion. Furthermore, the TA-Fe-coated MSNs-NH2 nano-carrier (MSNs-TA-Fe) reveals excellent biosafety on rice, zebrafish, and earthworms.
Conclusion
The developed TA-Fe-functionalized herbicide nanoformulations, with high foliar adhesion and anti-UV properties, effectively improve the utilization efficiency of AIs, thus offering innovative solutions for the development of efficient pesticide formulations.
期刊介绍:
Journal of Advanced Research (J. Adv. Res.) is an applied/natural sciences, peer-reviewed journal that focuses on interdisciplinary research. The journal aims to contribute to applied research and knowledge worldwide through the publication of original and high-quality research articles in the fields of Medicine, Pharmaceutical Sciences, Dentistry, Physical Therapy, Veterinary Medicine, and Basic and Biological Sciences.
The following abstracting and indexing services cover the Journal of Advanced Research: PubMed/Medline, Essential Science Indicators, Web of Science, Scopus, PubMed Central, PubMed, Science Citation Index Expanded, Directory of Open Access Journals (DOAJ), and INSPEC.