Multifunctional Borax Cross-Linked Hydroxypropyl Guar Gum Hydrogels with Crop Nutritional Function as Carriers for Dual-Responsive Acaricide Release,Journal of Agricultural and Food Chemistry

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Multifunctional Borax Cross-Linked Hydroxypropyl Guar Gum Hydrogels with Crop Nutritional Function as Carriers for Dual-Responsive Acaricide Release
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2023-10-25 , DOI: 10.1021/acs.jafc.3c05241
Huiping Chen ₁ , Tengjiao Li ₂ , Muhammad Bilal ₃ , Chong Cao ₁ , Pengyue Zhao ₁ , Xiaomao Zhou ₄ , Lu Yu ₅ , Qiliang Huang ₁ , Lidong Cao ₁

Affiliation

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.

中文翻译：

具有农作物营养功能的多功能硼砂交联羟丙基瓜尔胶水凝胶作为双响应杀螨剂释放的载体

具有多孔网络的水凝胶由于其固有的多功能性在智能农药输送领域受到了广泛关注。本研究通过交联和农药负载同时制备了杀螨剂cyetpyrafen（CPF）负载硼砂（BO）交联羟丙基瓜尔胶（HPG）（CPF@BO- co -HPG，CBG）水凝胶。具有3D多孔网络结构的可流动CBG水凝胶对柑橘叶和疏水界面具有更好的润湿和铺展能力。不可流动的 CBG 水凝胶具有 pH 和温度响应释放特性。同时，CBG 在 24 小时和 48 小时对柑橘全爪螨(McGregor)的杀螨功效均显着高于负载 CPF 的不含 BO 的 HPG 水凝胶。此外，CBG 对棉花生长具有营养作用，对斑马鱼具有环境安全性。该研究开发了一种BO交联HPG水凝胶作为智能农药输送载体和作物养分补充，可广泛应用于可持续农业。

更新日期：2023-10-25

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