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Biosynthesis, characterization, and acute toxicity of Berberis tinctoria-fabricated silver nanoparticles against the Asian tiger mosquito, Aedes albopictus, and the mosquito predators Toxorhynchites splendens and Mesocyclops thermocyclopoides

文献类型： 外文期刊

作者： Kumar, Palanisamy Mahesh 1 ; Murugan, Kadarkarai 1 ; Madhiyazhagan, Pari 1 ; Kovendan, Kalimuthu 1 ; Amerasan, D 1 ;

作者机构： 1.Bharathiar Univ, Sch Life Sci, Dept Zool, Div Entomol, Coimbatore 641046, Tamil Nadu, India

2.Univ Roma La Sapienza, Dept Environm Biol, Piazzale Aldo Moro 5, I-00185 Rome, Italy

3.King Saud Univ, Res Chair Laser Diag Canc, Dept Phys & Astron, Riyadh, Saudi Arabia

4.Fujian Acad Agr Sci, Ins

关键词： Arbovirus;Copepods;Culicidae;Dengue;Predaceous mosquito larvae;Predatory safety factor;SEM;Suitability index;XRD

期刊名称：PARASITOLOGY RESEARCH （ 影响因子：2.289； 五年影响因子：2.403 ）

ISSN：

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收录情况： SCI

摘要： 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.

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