Hebei Lansheng Biotech Co., Ltd.
ShangHai Yuelian Biotech Co., Ltd.

Alternating magnetic field-responsive nano-platform developed for controlled pesticide releaseqrcode

Jul. 30, 2021

Favorites Print
Forward
Jul. 30, 2021

By Zhang Nannan, Chinese Academy of Sciences


Pesticides play a key role in controlling weeds, pests, and diseases in modern agriculture to promote crop yield. As one of the most extensively used neonicotinoid insecticides, imidacloprid can effectively kill insects. However, such pesticides tended to enter the atmosphere, water and soil easily through runoff, volatilization, and leaching, resulting in serious environmental problems and even hazards to the health of human beings. It's urgent to develop new methods to control the pesticide loss.


image.png

Schematic illustration of the mechanism. Credit: ZHANG Lihong


A joint research team led by Prof. Wu Zhengyan from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS) developed a novel pesticide system, named magnetic field-responsively controlled-release imidacloprid nano-platform (MRCIN), to improve utilization efficiency of imidacloprid. The result was published in ACS Sustainable Chemistry & Engineering.


In this work, researchers fabricated MRCIN by loading imidacloprid in yolk-shell Fe3O4@C. The Fe3O4@C with a large (Brunauer, Emmett and Teller) BET surface area acted as a carrier for imidacloprid. The most interesting thing was that the Fe3O4 (ferrosoferric oxide) nanoparticles in MRCIN could vibrate under varied electromagnetic field to boost release of imidacloprid.


Therefore, MRCIN presented an excellent alternating magnetic field-responsively controlled-release performance via designing the frequency and voltage. After release, the existence of Fe3O4 nanoparticles was in favor of the collection of MRCIN from water. Besides, MRCIN could be reutilized at least three times.


The work provides a simple and potential way to achieve the controlled release of imidacloprid, improve utilization efficiency, and decline pollution to environment.



To learn more advanced Formulation, Adjuvant and Application Technologies, pls click the picture below to download 2021 Formulation&Adjuvant Technology magazine.


If you'd like to share your company/product story, please contact Grace Yuan via: grace@agropages.com


AP 杂志封面.png

Click here to view more previous magazines.

Picture 0/1200

More from AgroNews

Subscribe Comment

Subscribe 

Subscribe Email: *
Name:
Mobile Number:  

Comment  

Picture 0/1200

Subscribe to daily email alerts of AgroNews.