Effect of morphology on larvicidal activity of chemically synthesized zinc oxide nanoparticles against mosquito vectors.

ABSTRACT: We report the larvicidal effects of four different morphologies of zinc oxide nanoparticles (ZnO NPs) [star-shaped (S), needle-like (N), plate-like (P) and cubical (C)] on larvae of Aedes albopictus and Anopheles vagus; the mosquitoes causing dengue fever and malaria, respectively. The nanoparticles were characterized by several analytical techniques, and their sizes and shapes were determined. Second instar larvae of the two types of mosquitoes were exposed to several concentrations of nanoparticles (25 mg L^-1, 50 mg L^-1, 75 mg L^-1, 100 mg L^-1) at 25 ± 2 °C and 84 ± 5% R.H, separately, for each morphology. Larval mortality was reported at 24 h intervals up to 21 days. The resulting LC₅₀ for Aedes albopictus were,

SUBMITTER: Gunathilaka UMTM 

PROVIDER: S-EPMC8695257 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature