Cellulase-responsive hydroxypropyl cellulose-anchored hollow mesoporous silica carriers for pesticide delivery
文献类型： 外文期刊
作者： Wu, Ziwei 1 ; Chen, Yiyang 1 ; Gong, Xue 2 ; Yang, Shimeng 1 ; Xue, Haozhe 1 ; Jin, Chunzhe 1 ; Pan, Chengyuan 1 ; Zhang, Dayu 1 ; Xie, Yongjian 1 ;
作者机构： 1.Zhejiang A&F Univ, Coll Adv Agr Sci, Key Lab Biol Crop Pathogens & Insect Pests & Their, Hangzhou 311300, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Virol & Biotechnol, Hangzhou 310021, Peoples R China
关键词： Fipronil; Hollow mesoporous silica; Cellulase-responsive; Reticulitermes flaviceps; Zebrafish
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：7.7； 五年影响因子：7.7 ）
ISSN： 0141-8130
年卷期： 2024 年 277 卷
页码：
收录情况： SCI
摘要： In this study, a cellulase-responsive controlled-release formulation (FPR-HMS-HPC) was developed by grafting hydroxypropyl cellulose (HPC) onto fipronil (FPR) loaded hollow mesoporous silica (HMS) nanoparticles via ester linkage. The FPR-HMS-HPC formulation was characterized using scanning and transmission electron microscopies, Fourier transform infrared spectroscopy, and thermogravimetric analysis. The results indicated that FPR-HMS-HPC exhibited a high loading capacity of 10.0 % (w/w) and demonstrated favorable responsiveness to cellulase enzyme. Moreover, its insecticidal efficacy against Reticulitermes flaviceps surpassed that of an equivalent dose of FPR. Toxicology studies showed that the mortality and hatching rates of zebrafish exposed to FPRHMS-HPC nanoparticles were reduced by >6.5 and 8.0 times, respectively. Thus, HPC-anchored HMS nanoparticles as insecticide delivery systems present a sustainable method for pest control significantly reducing harm to non-target organisms and the environment.
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