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Electrical-Driven Release and Migration of Herbicide Using a Gel-Based Nanocomposite
Lihong Zhang1,2, Chaowen Chen1,2, Guilong Zhang1,3
1Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei 230031 , People's Republic of China.
Journal of Agricultural and Food Chemistry
|January 22, 2020
Summary
Researchers developed an electrical-driven release and migration glyphosate (EDRMG) system using attapulgite and calcium alginate nanocomposites. This system precisely controls glyphosate release, enhancing its efficiency and demonstrating good biosafety.
Area of Science:
- Materials Science
- Agricultural Chemistry
- Nanotechnology
Background:
- Glyphosate is a widely used herbicide.
- Controlled release of agrochemicals can improve efficiency and reduce environmental impact.
- Developing novel carriers for targeted delivery is crucial in agriculture.
Purpose of the Study:
- To fabricate an electrical-driven release and migration glyphosate (EDRMG) system.
- To investigate the electroresponsive controlled-release properties of the developed system.
- To assess the biosafety and application potential of the EDRMG system.
Main Methods:
- Fabrication of a nanocomposite using attapulgite (ATP), glyphosate (Gly), and calcium alginate (CA).
- Formation of porous ATP-Gly-CA hydrogel spheres (EDRMG-0.5) via cross-linking.
- Investigation of pore enlargement and glyphosate release under an electric field.
- Pot experiment to confirm electroresponsive controlled-release property.
- Biocompatibility tests on fish and mice.
Main Results:
- Successfully fabricated EDRMG-0.5 hydrogel spheres with a nanonetwork structure.
- Demonstrated enlarged pore size and electroresponsive glyphosate release under an electric field due to Coulomb force.
- Confirmed excellent electroresponsively controlled-release property via pot experiment.
- Showcased fine biocompatibility and good biosafety in fish and mice.
Conclusions:
- The developed EDRMG system offers a low-cost and promising approach for controlled glyphosate release.
- Precise delivery and improved utilization efficiency of glyphosate are achievable.
- The system holds high potential for agricultural applications due to its electroresponsive and biosafety features.
