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Author Kumar, Palanisamy Mahesh ♦ Murugan, Kadarkarai ♦ Madhiyazhagan, Pari ♦ Kovendan, Kalimuthu ♦ Amerasan, Duraisamy ♦ Chandramohan, Balamurugan ♦ Dinesh, Devakumar ♦ Suresh, Udaiyan ♦ Nicoletti, Marcello ♦ Alsalhi, Mohamad Saleh ♦ Devanesan, Sandhanasamy ♦ Wei, Hui ♦ Kalimuthu, Kandasamy ♦ Hwang, Jiang Shiou ♦ Lo Iaco, Annalisa ♦ Benelli, Giovanni
Source SpringerLink
Content type Text
Publisher Springer Berlin Heidelberg
File Format PDF
Copyright Year ©2015
Language English
Subject Domain (in DDC) Technology ♦ Medicine & health
Subject Keyword Arbovirus ♦ Copepods ♦ Culicidae ♦ Dengue ♦ Predaceous mosquito larvae ♦ Predatory safety factor ♦ SEM ♦ Suitability index ♦ XRD ♦ Medical Microbiology ♦ Microbiology ♦ Immunology
Abstract Aedes albopictus is an important arbovirus vector, including dengue. Currently, there is no specific treatment for dengue. Its prevention solely depends on effective vector control measures. In this study, silver nanoparticles (AgNPs) were biosynthesized using a cheap leaf extract of Berberis tinctoria as reducing and stabilizing agent and tested against Ae. albopictus and two mosquito natural enemies. AgNPs were characterized by using UV–vis spectrophotometry, X-ray diffraction, and scanning electron microscopy. In laboratory conditions, the toxicity of AgNPs was evaluated on larvae and pupae of Ae. albopictus. Suitability Index/Predator Safety Factor was assessed on Toxorhynchites splendens and Mesocyclops thermocyclopoides. The leaf extract of B. tinctoria was toxic against larval instars (I–IV) and pupae of Ae. albopictus; LC50 was 182.72 ppm (I instar), 230.99 ppm (II), 269.65 ppm (III), 321.75 ppm (IV), and 359.71 ppm (pupa). B. tinctoria-synthesized AgNPs were highly effective, with LC50 of 4.97 ppm (I instar), 5.97 ppm (II), 7.60 ppm (III), 9.65 ppm (IV), and 14.87 ppm (pupa). Both the leaf extract and AgNPs showed reduced toxicity against the mosquito natural enemies M. thermocyclopoides and T. splendens. Overall, this study firstly shed light on effectiveness of B. tinctoria-synthesized AgNPs as an eco-friendly nanopesticide, highlighting the concrete possibility to employ this newer and safer tool in arbovirus vector control programs.
ISSN 09320113
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2015-10-26
Publisher Place Berlin/Heidelberg
e-ISSN 14321955
Journal Parasitology Research
Volume Number 115
Issue Number 2
Page Count 9
Starting Page 751
Ending Page 759

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Source: SpringerLink