Green synthesis and characterization of silver nanoparticles fabricated using Anisomeles indica: Mosquitocidal potential against malaria, dengue and Japanese encephalitis vectors

Autor: Mohan Rajeswary, Marimuthu Govindarajan, Kaliyan Veerakumar, Udaiyan Muthukumaran, S.L. Hoti, Giovanni Benelli
Rok vydání: 2016
Předmět:
Insecticides
Metal Nanoparticles
Spectroscopy
Electron Energy-Loss
02 engineering and technology
01 natural sciences
Silver nanoparticle
Culex tritaeniorhynchus
Dengue
chemistry.chemical_compound
X-Ray Diffraction
Spectroscopy
Fourier Transform Infrared
Nanotechnology
Scanning
Spectroscopy
Ultraviolet
Microscopy
Medicine (all)
Nanomosquitocidals
food and beverages
Aedes albopictus
Anopheles subpictus
Plant-borne larvicides
Animals
Encephalitis
Japanese
Lamiaceae
Malaria
Microscopy
Electron
Scanning
Microscopy
Electron
Transmission
Plant Leaves
Silver
Specific Pathogen-Free Organisms
Spectrophotometry
Ultraviolet
Culicidae
Insect Vectors
Plant Extracts
Parasitology
Immunology
General Medicine
021001 nanoscience & nanotechnology
Silver nitrate
Infectious Diseases
Spectrophotometry
Encephalitis
0210 nano-technology
Anisomeles indica
Biology
010402 general chemistry
Electron
parasitic diseases
Botany
medicine
Transmission
fungi
Japanese encephalitis
biology.organism_classification
medicine.disease
Acute toxicity
0104 chemical sciences
chemistry
Fourier Transform Infrared
Japanese
Electron Energy-Loss
Nuclear chemistry
Zdroj: Experimental Parasitology. 161:40-47
ISSN: 0014-4894
DOI: 10.1016/j.exppara.2015.12.011
Popis: Mosquitoes (Diptera: Culicidae) represent a key threat for millions of people worldwide, since they act as vectors for devastating parasites and pathogens. In this scenario, eco-friendly control tools against mosquito vectors are a priority. Green synthesis of silver nanoparticles (AgNP) using a cheap, aqueous leaf extract of Anisomeles indica by reduction of Ag(+) ions from silver nitrate solution has been investigated. Bio-reduced AgNP were characterized by UV-visible spectrophotometry, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDX) and X-ray diffraction analysis (XRD). The acute toxicity of A. indica leaf extract and biosynthesized AgNP was evaluated against larvae of the malaria vector Anopheles subpictus, the dengue vector Aedes albopictus and the Japanese encephalitis vector Culex tritaeniorhynchus. Both the A. indica leaf extract and AgNP showed dose dependent larvicidal effect against all tested mosquito species. Compared to the leaf aqueous extract, biosynthesized AgNP showed higher toxicity against An. subpictus, Ae. albopictus, and Cx. tritaeniorhynchus with LC50 values of 31.56, 35.21 and 38.08 μg/mL, respectively. Overall, this study firstly shed light on the mosquitocidal potential of A. indica, a potential bioresource for rapid, cheap and effective AgNP synthesis.
Databáze: OpenAIRE
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