Datura metel-synthesized silver nanoparticles magnify predation of dragonfly nymphs against the malaria vector Anopheles stephensi

Parasitology Research
Kadarkarai MuruganGiovanni Benelli

Abstract

Malaria is a life-threatening disease caused by parasites transmitted to people and animals through the bites of infected mosquitoes. The employ of synthetic insecticides to control Anopheles populations leads to high operational costs, non-target effects, and induced resistance. Recently, plant-borne compounds have been proposed for efficient and rapid extracellular synthesis of mosquitocidal nanoparticles. However, their impact against predators of mosquito larvae has been poorly studied. In this study, we synthesized silver nanoparticles (AgNPs) using the Datura metel leaf extract as reducing and stabilizing agent. The biosynthesis of AgNPs was confirmed analyzing the excitation of surface plasmon resonance using ultraviolet-visible (UV-vis) spectroscopy. Scanning electron microscopy (SEM) showed the clustered and irregular shapes of AgNPs, with a mean size of 40-60 nm. The presence of silver was determined by energy-dispersive X-ray (EDX) spectroscopy. Fourier transform infrared (FTIR) spectroscopy analysis investigated the identity of secondary metabolites, which may be acting as AgNP capping agents. In laboratory, LC50 of D. metel extract against Anopheles stephensi ranged from 34.693 ppm (I instar larvae) to 81.500 ppm (...Continue Reading

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Citations

Jan 29, 2016·Nanoscale Research Letters·Ill-Min ChungGovindasamy Rajakumar
Jun 28, 2016·Ecotoxicology and Environmental Safety·Kadarkarai MuruganGiovanni Benelli
Oct 6, 2016·Insects·Giovanni BenelliThomas Walker
Nov 20, 2018·Artificial Cells, Nanomedicine, and Biotechnology·Mohammad Mousavi-KhattatAmir Razmjou
Nov 4, 2017·Drug Development and Industrial Pharmacy·Amarvani P KanjikarRamesh L Londonkar
Apr 4, 2018·Environmental Science and Pollution Research International·Giovanni Benelli
Jul 30, 2017·Environmental Science and Pollution Research International·Giovanni BenelliAkon Higuchi
Jun 5, 2021·Pest Management Science·Alex Córdoba-AguilarGiovanni Benelli

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