Environmental friendly synthesis of zinc oxide nanoparticles and estimation of its larvicidal activity against Aedes aegypti

Nanotechnology is a relatively new field which is making advancements each day. It is making a huge impact on our day-to-day lives. Nanoparticles possess unique properties which makes it viable to use it in a wide variety of fields such as in cosmetics, parasitology and catalysis. We used a plant-mediated, nature-friendly method which does not involve the usage of any harmful chemicals. Syzgium cumini seed extract was taken as the reducing agent for the preparation of zinc oxide nanoparticles. Green-synthesized zinc oxide nanoparticles were confirmed using X-ray diffraction, Fourier-transform infrared, UV-Vis spectroscopy, scanning electron microscope and transmission electron microscope. The average particle size was found to be around 50-60 nm. Additionally, larvicidal and ovicidal activity of the prepared nanoparticles against dengue causing vector was also carried out which resulted in LC50 and LC90 of 51.94 ppm and 119.99 ppm, respectively. [GRAPHICS] .