RETRACTED ARTICLE: Novel synthesis of silver nanoparticles using Bauhinia variegata: a recent eco-friendly approach for mosquito control

Autor: Heinz Mehlhorn, Marimuthu Govindarajan, Giovanni Benelli, S.L. Hoti, Udaiyan Muthukumaran, Kaliyan Veerakumar, Donald R. Barnard, Mohan Rajeswary
Rok vydání: 2015
Předmět:
Zdroj: Parasitology Research. 115:723-733
ISSN: 1432-1955
0932-0113
DOI: 10.1007/s00436-015-4794-3
Popis: Mosquito vectors are responsible for transmitting diseases such as malaria, dengue, chikungunya, Japanese encephalitis, dengue, and lymphatic filariasis. The use of synthetic insecticides to control mosquito vectors has caused physiological resistance and adverse environmental effects, in addition to high operational cost. Biosynthesis of silver nanoparticles has been proposed as an alternative to traditional control tools. In the present study, green synthesis of silver nanoparticles (AgNPs) using aqueous leaf extract of Bauhinia variegata by reduction of Ag(+) ions from silver nitrate solution has been investigated. The bioreduced silver nanoparticles were characterized by UV–visible spectrophotometry, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray analysis (EDX), and X-ray diffraction analysis (XRD). Leaf extract and synthesized AgNPs were evaluated against the larvae of Anopheles subpictus, Aedes albopictus, and Culex tritaeniorhynchus. Compared to aqueous extract, synthesized AgNPs showed higher toxicity against An. subpictus, Ae. albopictus, and Cx. tritaeniorhynchus with LC50 and LC90 values of 41.96, 46.16, and 51.92 μg/mL and 82.93, 89.42, and 97.12 μg/mL, respectively. Overall, this study proves that B. variegata is a potential bioresource for stable, reproducible nanoparticle synthesis and may be proposed as an efficient mosquito control agent.
Databáze: OpenAIRE
Externí odkaz: