METALLIC NANOPARTICLES BY GREEN SYNTHESIS AND THEIR APPLICATION AS INSECTICIDES

Abstract

Background: The synthesis of nanoparticles from living organisms better known as biological synthesis or green synthesis has become a potential tool due to the advantages it provides compared to other existing synthesis methods. Green synthesis is presented as an environmentally friendly, safe, less toxic and cost-effective alternative. Due to these properties green nanoparticles have been implemented in the field of agriculture, mainly as nanopesticides. Objective: To review the reports on the evaluation of green nanoparticles against insects, as well as the knowledge on the possible modes of action of these nanoparticles. Methodology: A compilation of scientific information was made in different search engines, from which those that evaluated nanoparticles by green synthesis as insecticides were selected. Results: Among the modes of action caused by metallic nanoparticles, the following stand out: damage and histological changes at intestinal level, antifeedant activity, physical damage to the cuticle, decreased cell viability and inhibition of fecundity. Implications: the availability of information on nanoparticles is fundamental to be able to scientifically propose their implementation in insect pest management strategies. Conclusion: green synthesis of nanoparticles is presented as an alternative to produce nanoinsecticides; however, further research is needed on the mechanisms of action on insects, as well as their long-term repercussions on human and environmental health.

Keywords

• biosíntesis
• insectos
• nanoinsecticidas
• nanopartículas
• nanopesticidas.