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Preparation and characterization of efficient and safe lambda-cyhalothrin nanoparticles with tunable particle size.
Chunxin Wang1, Bo Cui1, Xiang Zhao1
1Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China.
Pest Management Science
|December 20, 2020
Summary
Researchers developed tunable glucose-loaded lambda-cyhalothrin nanoparticles (LCNs) for pest control. Smaller LCNs demonstrated enhanced wettability, dispersibility, stability, and insecticidal activity, offering a promising nanopesticide formulation.
Area of Science:
- Agricultural Science
- Materials Science
- Nanotechnology
Background:
- Nanopesticides offer enhanced efficiency and reduced side effects in pest control.
- Nanoformulations improve water solubility for insoluble pesticides.
- Limited understanding exists on how particle size affects nanopesticide physicochemical properties and biological activity.
Purpose of the Study:
- To develop glucose-loaded lambda-cyhalothrin nanoparticles (LCNs) with tunable sizes.
- To evaluate the impact of particle size on LCN physicochemical properties and insecticidal action.
Main Methods:
- Utilized shearing emulsification and carrier loading techniques.
- Synthesized LCNs with mean particle sizes of 50.6, 115.2, and 221 nm.
- Assessed wettability, dispersibility, stability, and insecticidal activity.
Main Results:
- Nanoparticle properties (wettability, dispersibility, stability) were dependent on particle size and distribution uniformity.
- Insecticidal activity of LCNs showed an inverse relationship with particle size.
- Smaller LCNs (50.6 nm) exhibited superior performance.
Conclusions:
- A facile method for preparing tunable nanopesticides was established.
- Particle size significantly influences nanopesticide performance and efficacy.
- Findings clarify the critical role of particle size in pesticide formulation and application.
