Abstract
Seaweed mediated nanoparticles (NPs) based on noble metals bio-synthesis in mosquito control programme has fascinated substantial attention because of their eco-friendly and biocompatibility natures. The present study focused on biosynthesis of silver nanoparticles (AgNPs) using ethenolic extract of Sargassum palmeri (SpExt) to investigate the larvicidal toxicity against 4th instar larvae of Ae aegypti. UV/Visible spectrophotometry, SEM, and FTIR spectrometry were used to confirm the biosynthesis of AgNPs from the S. palmeri (SpAgNPs). The morphology of SpAgNPs exhibited spherical morphology with average sizes of 40-50 nm. Taking LC90 and LC90 values into consideration, the records showed that the SpAgNPs LC50 (194.16ppm) and LC90 (463.60 ppm) proved to be a more effective extract than the SpExt LC50 (282.55ppm) and LC90 was (1288.39 ppm), which is increased about 1.45 and 2.77 folds respectively.