A Leaf-Adhesive, pH-Responsive Emamectin Benzoate Nanopesticide for Enhanced Efficacy and Reduced Toxicity
Source abstract
Abstract
A precise and low-toxicity pesticide delivery system is essential to enhancing pesticide efficacy and sustainability. Herein, a facile strategy is developed to construct leaf-adhesive and pH-responsive emamectin benzoate nanopesticides (EB NPs), in which Ca 2+ cross-links copolymer surfactant/nonionic surfactant/sodium alginate in coacervates. The uniform nanosize of EB NPs enables them to penetrate the microstructure of plant leaves, thereby improving their deposition and antiwashing ability. Moreover, the pH-responsive EB NPs facilitate precise release of encapsulated emamectin benzoate (EB) in the alkaline midgut (pH 9–10) of Plutella xylostella larvae by displacing Ca 2+ in the alginate nanoskeleton, along with the nanostructure disintegration. Notably, the acute toxicity of EB NPs to zebrafish is reduced to less than one-seventh that of commercial EB microemulsion formulation. This nanopesticide approach shows excellent potential to improve the pesticide efficacy and safety.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Polymer-Based Agricultural Enhancements · Pesticide and Herbicide Environmental Studies · Nanocomposite Films for Food Packaging
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
CAS Key Laboratory of Colloid, Interface, and Chemical Thermodynamics, Beijing National Laboratory for Molecular Sciences
Institute of Chemistry, Chinese Academy of Sciences
University of Chinese Academy of Sciences
University of Science and Technology of China
State Key Laboratory of Bioinspired Interfacial Materials Science, Suzhou Institute for Advanced Research, School of Nano Science and Technology
Institute of Environment and Sustainable Development in Agriculture
Chinese Academy of Agricultural Sciences
Funding
National Basic Research Program of China (973 Program) · Suzhou Key Laboratory of Bioinspired Interfacial Science · National Natural Science Foundation of China (NSFC)
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