Fabrication of nano-mosquitocides using chitosan from crab shells: Impact on non-target organisms in the aquatic environment
文献类型: 外文期刊
第一作者: Murugan, Kadarkarai
作者: Murugan, Kadarkarai;Anitha, Jaganathan;Dinesh, Devakumar;Suresh, Udaiyan;Rajaganesh, Rajapandian;Chandramohan, Balamurugan;Subramaniam, Jayapal;Paulpandi, Manickam;Vadivalagan, Chitravel;Amuthavalli, Pandiyan;Murugan, Kadarkarai;Wang, Lan;Hwang, Jiang-Shiou;Wei, Hui;Alsalhi, Mohamad Saleh;Devanesan, Sandhanasamy;Kumar, Suresh;Pugazhendy, Kannaiyan;Higuchi, Akon;Nicoletti, Marcello;Benelli, Giovanni;Benelli, Giovanni
作者机构:
关键词: Anopheles stephensi;biosafety;Culicidae;Danio rerio;Non-target effects;Plasmodium
期刊名称:ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY ( 影响因子:6.291; 五年影响因子:6.393 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Mosquitoes are arthropods of huge medical and veterinary relevance, since they vector pathogens and parasites of public health importance, including malaria, dengue and Zika virus. Currently, nano technology is considered a potential eco-friendly approach in mosquito control research. We proposed a novel method of biofabrication of silver nanopartides (AgNP) using chitosan (Ch) from crab shells. Ch-AgNP nanocomposite was characterized by UV-vis spectroscopy, FTIR, SEM, EDX and XRD. Ch-AgNP were tested against larvae and pupae of the malaria vector Anopheles stephensi obtaining LC50 ranging from 3.18 ppm (I) to 6.54 ppm (pupae). The antibacterial properties of Ch-AgNP were proved against Bacillus subtilis, Kiebsiella pneumoniae and Salmonella typhi, while no growth inhibition was reported in assays conducted on Proteus vulgaris. Concerning non-target effects, in standard laboratory considtions the predation efficiency of Danio rerio zebrafishes was 68.8% and 61.6% against I and II instar larvae of A. stephensi, respectively. In a Ch-AgNP-contaminated environment, fish predation was boosted to 89.5% and 77.3%, respectively. Quantitative analysis of antioxidant enzymes SOD, CAT and 120 from hepatopancreas of fresh water crabs Parateiphusa hydmdromous exposed for 16 clays to a Ch-AgNP-contaminated aquatic environment were conducted. Notably, deleterious effects of Ch-AgNP contaminating aquatic enviroment on the non-target crab P. hydrodromous were observed, particularly when doses higher than 8-10 ppm are tested. Overall, this research highlights the potential of Ch-AGNP for the development of newer control tools against young instar populations of malaria mosquitoes, also highlighting some risks concerned the employ of nanopartides in aquatic environments. (C) 2016 Elsevier Inc. All rights reserved.
分类号: X`R12`R99
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