Larvicidal potential of gold and silver nanoparticles synthesized using Acalypha fruticosa leaf extracts against Culex pipiens (Culicidae: Diptera) |
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| Authors: | Sadeq K. Alhag Fahd A. Al-Mekhlafi Nael Abutaha Fahd Mohammed Abd Al Galil Muhammad A. Wadaan |
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| Affiliation: | 1. Biology Department, College of Science and Arts, King Khalid University, Muhayl Asser, Saudi Arabia;2. Biology Department, College of Science, Ibb University, Yemen;3. Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia;4. Department of Agricultural Production, College of Agriculture and Veterinary Medicine, Thamar University, Yemen;5. Department of Biology, Faculty of Sciences, University of Bisha, P. O. Box: 551, Bisha 61922, Saudi Arabia;6. Department of Biology, Faculty of Applied Sciences, Thamar University, Yemen |
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| Abstract: | Plant secondary metabolites have been recently used for the synthesis of different nanoparticles. The present investigation aimed at evaluating the effect of gold (AuNPs) and silver (AgNPs) nanoparticles synthesized using Acalypha fruticosa leaf extracts to control the mosquito Culex pipiens. The A. fruticosa AuNPs and AgNPs spectra displayed their maximum absorption at 550 nm and 440 nm, respectively. The infrared spectra revealed different functional groups related to different chemical compounds. The larval mortality of aqueous leaf extract of A. fruticosa was 499.54 ppm (LC50) and 1734.06 ppm (LC90) after 24 h of treatment. This study revealed that AuNP (LC50, 30.2 and LC90, 104.83 ppm) and AgNP (LC50, 52.86 and LC90, 157.227 ppm) preparations were highly effective compared to the A. fruticosa extract alone and also more affordable, as a smaller amount was required. The present findings show the potential larvicidal effect of the synthesized AuNPs and AgNPs for the control of mosquito-mediated disease transmission. |
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| Keywords: | Larvicidal activity Nanoparticles FTIR TEM |
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