pH-responsive release and washout resistance of chitosan-based nano-pesticides for sustainable control of plumeria rust

IF 8.5 1区化学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY International Journal of Biological Macromolecules Pub Date : 2022-12-01 DOI:10.1016/j.ijbiomac.2022.09.144

Yi Zhou , Jiyingzi Wu , Jun Zhou , Sukun Lin , Dongmei Cheng

{"title":"pH-responsive release and washout resistance of chitosan-based nano-pesticides for sustainable control of plumeria rust","authors":"Yi Zhou , Jiyingzi Wu , Jun Zhou , Sukun Lin , Dongmei Cheng","doi":"10.1016/j.ijbiomac.2022.09.144","DOIUrl":null,"url":null,"abstract":"<div><p><span>Controlled pesticide release in response to environmental stimuli by encapsulating pesticides in a carrier is a feasible approach to improve the effective utilization rate. In this study, pH-responsive release nanoparticles loaded with penconazole (PE) were prepared by ionic cross-linking of chitosan and carboxymethyl chitosan (PE@CS/CMCS-NPs). PE@CS/CMCS-NPs exhibited good washout resistance and wettability properties, increasing the washing resistance of the pesticide by approximately 20 times under continuous washing. The results of the release experiments showed that nanoparticles had adjustable controlled-release characteristics with the change in pH based on the swelling of nanoparticles. The results of </span>spore germination experiments showed that PE@CS/CMCS-NPs enhanced the inhibitory effect under acidic conditions. The field experiment results showed that PE@CS/CMCS-NPs had a better control effect than PE-aqueous solution, extended the duration and slowed down the dissipation of PE. These results indicated that the CS/CMCS-NPs pH-responsive release system has great potential in the development of an effective pesticide formulation.</p></div>","PeriodicalId":333,"journal":{"name":"International Journal of Biological Macromolecules","volume":"222 ","pages":"Pages 188-197"},"PeriodicalIF":8.5000,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Biological Macromolecules","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0141813022020748","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}

引用次数: 11

Abstract

Controlled pesticide release in response to environmental stimuli by encapsulating pesticides in a carrier is a feasible approach to improve the effective utilization rate. In this study, pH-responsive release nanoparticles loaded with penconazole (PE) were prepared by ionic cross-linking of chitosan and carboxymethyl chitosan (PE@CS/CMCS-NPs). PE@CS/CMCS-NPs exhibited good washout resistance and wettability properties, increasing the washing resistance of the pesticide by approximately 20 times under continuous washing. The results of the release experiments showed that nanoparticles had adjustable controlled-release characteristics with the change in pH based on the swelling of nanoparticles. The results of spore germination experiments showed that PE@CS/CMCS-NPs enhanced the inhibitory effect under acidic conditions. The field experiment results showed that PE@CS/CMCS-NPs had a better control effect than PE-aqueous solution, extended the duration and slowed down the dissipation of PE. These results indicated that the CS/CMCS-NPs pH-responsive release system has great potential in the development of an effective pesticide formulation.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

壳聚糖基纳米农药对鸡蛋花锈病的ph响应释放及耐洗性研究

将农药包封在载体中，根据环境刺激控制农药释放，是提高农药有效利用率的可行途径。本研究通过壳聚糖和羧甲基壳聚糖(PE@CS/CMCS-NPs)离子交联制备了ph响应释放的戊康唑(PE)纳米颗粒。PE@CS/CMCS-NPs表现出良好的耐水洗性和润湿性，在连续洗涤下，农药的耐水洗性提高了约20倍。释放实验结果表明，纳米颗粒在溶胀的基础上具有随pH变化可调节的控释特性。孢子萌发实验结果表明，PE@CS/CMCS-NPs在酸性条件下增强了抑菌效果。现场试验结果表明，PE@CS/CMCS-NPs比PE水溶液具有更好的控制效果，延长了PE的持续时间，减缓了PE的耗散。这些结果表明，CS/CMCS-NPs ph响应释放体系在开发高效农药制剂方面具有很大的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

文献相关原料

公司名称

产品信息

上海源叶

Chitosan |90%

￥24.00~￥24532.00

索莱宝

Carboxymethyl chitosan |87%

来源期刊

International Journal of Biological Macromolecules 生物-生化与分子生物学

CiteScore

13.70

自引率

9.80%

发文量

2728

审稿时长

64 days

期刊介绍： The International Journal of Biological Macromolecules is a well-established international journal dedicated to research on the chemical and biological aspects of natural macromolecules. Focusing on proteins, macromolecular carbohydrates, glycoproteins, proteoglycans, lignins, biological poly-acids, and nucleic acids, the journal presents the latest findings in molecular structure, properties, biological activities, interactions, modifications, and functional properties. Papers must offer new and novel insights, encompassing related model systems, structural conformational studies, theoretical developments, and analytical techniques. Each paper is required to primarily focus on at least one named biological macromolecule, reflected in the title, abstract, and text.