Review article on the synthesis of silver nanoparticles from plant extract and its larvicidal activity on the mosquito

Abstract

Mosquito-vector diseases are spreading worldwide, especially in tropical and sub-tropical countries, as the weather conditions in these countries are favourable for their growth. The larvicide and mosquito repellent are usually used to control the population of the mosquitoes. But using these chemically derived insecticides has made larvae resistant to it. Green-Nanotechnology is recently gaining attention, particularly silver nanoparticles. They are synthesized to control the mosquito population, and since it is synthesised using plant extract, the risk of exposure to any toxic chemical is reduced. This review paper, discuss how silver nanoparticles are synthesized with phytoextract and its effects on the mosquito larval and pupal population. The Silver (Ag) nanoparticles show better larvicidal activity compared to the larvicidal activity of the crude plant extract. Furthermore, it is seen that the dose required to kill half the population of larvae /pupae is less in Green Ag Nanoparticles compared to plant extract.