Chitosan mediated nanoparticles from Saccharomyces cerevisiae and its Mosquito Larvicidal Activity

Abstract

Mosquitoes are one of the most medically significant groups of vectors, having an ability to transmit parasites and pathogens that can have devastating impacts on humans. In this study, chitosan nanoparticles were synthesized from chitosan polymer by ionic gelation method. The chitin was first extracted from Saccharomyces cerevisiae and then deacetylated to chitosan. Silver nanopartcals were also prepared and the presence and characterization was investigated by scanning electron microscopy (SEM). The comparative study of the larvicidal activity of chitosan nanoparticles and silvers was also studied which shows chitosan nanoparticles started  mortality at higher concentrations, it showed uniform rise in mortality of mosquito larvae than silver nanoparticles.