Salicylaldehyde and D-(+)-galactose functionalized chitosan oligosaccharide nanoparticles as carriers for sustained release of pesticide with enhanced UV stability

被引：8

作者：

Su, Shaochun ^{[1
]}

Hao, Li ^{[1
]}

Chen, Huayao ^{[1
]}

Zhou, Xinhua ^{[1
]}

Zhou, Hongjun ^{[1
]}

机构：

[1] Zhongkai Univ Agr & Engn, Key Lab Agr Green Fine Chem Guangdong Higher Educ, Innovat Inst Plant Hlth, Sch Chem & Chem Engn,Key Lab Green Prevent & Contr, Guangzhou 510225, Guangdong, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2023年 / 656卷

基金：

中国国家自然科学基金;

关键词：

Chitosan oligosaccharide; Salicylaldehyde; Avermectin; Anti-UV; Sustained release; SCHIFF-BASES; ANTIOXIDANT ACTIVITIES; METAL-COMPLEXES; PLANT-GROWTH; SILICA; FILMS;

D O I：

10.1016/j.colsurfa.2022.130437

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Sustainable food consumption is intertwined with sustainable agriculture development, which focuses on the production and protection of agricultural crops in a safe and effective fashion. Herein, amphiphilic functionalized chitosan oligosaccharide nanoparticles (CSD) were formed by a Schiff base reaction grafted with salicylaldehyde and D-(+)-galactose (D-Gal). Avermectin (AVM) was used as a model pesticide and self-assembled onto CSD to obtain AVM@CSD nanoparticles with an encapsulation efficiency of 74.94%. AVM@CSD nanocarrier exhibited excellent anti-UV property to retain more AVM, due to their Schiff base structure and salicylaldehyde for UV shielding. Compared with bare AVM and commercial AVM emulsifiable concentrates, AVM@CSD preserved high insecticidal activity after UV irradiation. Additionally, CSD carrier promoted cucumber seed germination and seedling growth. These data suggested the potential utilization of the amphiphilic chitosan oligosaccharide as carriers for pesticides to improve their delivery and release properties and opens a novel avenue towards the application of water-dispersible and biological CSD in the field of pest management and plant growth.

引用

页数：10

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