Drip irrigation under mulch is widely used in arid areas, and the integrated utilization of water, fertilizer, pesticide and other agricultural chemicals can be derived. The problem of uniform dispersion of hydrophobic agricultural chemicals in aqueous solution was solved by the preparation of nanoparticles coated with amphiphilic molecules by the method of flash nanoprecipitation (FNP). In recent years, FNP has been developed in the field of nanodrug preparation for targeted delivery and controlled release as an efficient approach to enhance the self-assembly of surfactants on the surface of hydrophobic drug crystals. The present work demonstrated how pesticide nanoparticals were prepared by FNP technique using a multi-inlet vortex mixer (MIVM). Lamda cypermethrin (LC) loaded nanoparticals coated with environment-friendly surfactant sophorolipids were prepared. Their morphology, size and size distribution can be controlled by tuning the concentrations of LC and sophorolipids, the ratio of organic solvent and water, and kinetic parameters of streams. In addition, the release behavior of nanoparticles at various pH values was also studied. It is believed that this kind of nanoparticles should have promising applications in arid areas even with saline alkali soil.

Nano-sized hydrophobic agricultural chemicals encapsulated by sorphorolipids prepared by flash nanoprecipitation

ACS Fall 2021

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.