Estudo do potencial toxicológico das nanopartículas de prata estabilizadas em norbixina para controle do vetor Aedes aegypti L

Abstract

The insect caled Aedes aegypti is the main transmission vector of the Dengue, Chikungunya and Zika virus. Due to the high reproductive rate of this mosquito and its ability to develop resistance to larvicides and pesticides, population control of the Aedes aegypti continues to be a matter of importance in health issues(Brasil, 2021). This research aims to evaluate the potential of norbixin and together with silver nanoparticles to be used as a larvicidal agent in the fight against this mosquito. The materials, alone and together, was characterized by FT-IR, XRD and UV-Vis. The preliminary toxicological test carried out on Artemia salina, an aquatic microcrustacean, indicated the LC50 at a concentration of 100 µg/mL and the LC90 at a concentration of 150 µg/mL, for the norbixin solution, nanoparticles teste was impracticable. Using the Aedes aegypti larvae there is a 2.5×10-4 mol/L concentration of norbixin used to have a larvicidal action, where showed it was that the solution is more effective in the long term action and without the presence of silver nanoparticles.