PUBLICATION

Multifunctional Borax Cross-Linked Hydroxypropyl Guar Gum Hydrogels with Crop Nutritional Function as Carriers for Dual-Responsive Acaricide Release

Authors
Chen, H., Li, T., Bilal, M., Cao, C., Zhao, P., Zhou, X., Yu, L., Huang, Q., Cao, L.
ID
ZDB-PUB-231025-61
Date
2023
Source
Journal of Agricultural and Food Chemistry   71(44): 16521-16532 (Journal)
Registered Authors
Keywords
acaricide, borax, controlled release, hydrogel, hydroxypropyl guar gum
MeSH Terms
  • Hydrogels*/chemistry
  • Zebrafish
  • Animals
  • Hydrogen-Ion Concentration
  • Acaricides*
PubMed
37877155 Full text @ J. Agric. Food Chem.
Abstract
Hydrogels with porous networks have received considerable attention in smart pesticide delivery due to their inherent versatility. In this study, acaricide cyetpyrafen (CPF)-loaded borax (BO) cross-linked hydroxypropyl guar gum (HPG) (CPF@BO-co-HPG, CBG) hydrogels were prepared by cross-linking and pesticide loading simultaneously. The flowable CBG hydrogels with 3D porous network structures had better wetting and spreading ability on Citrus reticulata Blanco leaves and a hydrophobic interface. The nonflowable CBG hydrogels had pH- and temperature-responsive release properties. Meanwhile, the acaricidal efficacy of CBG against Panonychus citri (McGregor) at both 24 and 48 h was significantly higher than those of CPF-loaded BO-free HPG hydrogels. Furthermore, CBG had a nutritional function for cotton growth and environmental safety for zebrafish. This research developed a BO cross-linked HPG hydrogel as a smart pesticide delivery vehicle and crop nutrient replenishment, which can be widely applied in sustainable agriculture.
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