Organic Porous Materials with Temperature Responsive Coatings for Mesosulfuron-Methyl Delivery
文献类型： 外文期刊
作者： Su, Wangcang 1 ; Niu, Yujia 1 ; Yang, Aiguo 2 ; Zhao, Shirui 3 ; Chen, Wenzhe 1 ; Sun, Lanlan 1 ; Xue, Fei 1 ; Xu, Hongle 1 ; Wu, Renhai 1 ;
作者机构： 1.Henan Acad Agr Sci, Inst Plant Protect, Zhengzhou 450002, Peoples R China
2.Guangxi Minzu Univ, Sch Chem & Chem Engn, Nanning 530006, Peoples R China
3.Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China
关键词：
temperature-controlled release; mesosulfuron-methyl;
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.2； 五年影响因子：6.4 ）
ISSN： 0021-8561
年卷期： 2025 年 73 卷 28 期
页码：
收录情况： SCI
摘要： To address the challenges of wheat phytotoxicity and herbicide resistance of conventional mesosulfuron-methyl (MES) formulations in controlling Aegilops tauschii, a temperature-responsive controlled-release herbicide system (MPA-TPA-POPs@MES@PLU) was developed in this study. MES was encapsulated within porous MPA-TPA-POPs and coated with thermosensitive Pluronic F-127 (PLU), enabling intelligent release regulated by temperature. Compared to MES, this system demonstrated superior sustained-release properties, reducing emissions by 62.7% at 3 degrees C while maintaining effective release at 25 degrees C. Biological evaluations revealed that the GR50 against A. tauschii was 28% lower than that of MES oil dispersion (OD). Notably, the formulation exhibited superior crop safety, reducing wheat phytotoxicity by 62% and 54% in fresh weight inhibition rate compared to MES OD and MES TC at 3 degrees C. By synergistically integrating porous carrier loading and thermoresponsive coating technologies, this study achieved precise temperature-modulated herbicide release, extending herbicidal persistence while minimizing nontarget crop exposure through environmental temperature perception, providing a paradigm for designing intelligent agrochemical delivery systems with high efficacy and biosafety.
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