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Knockdown of Fruit Flies by Imidacloprid Nanoaerosol

机译：吡虫啉纳米气溶胶的果蝇击倒

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摘要

This report describes the effects of nanoaerosol particles (NAPs) from imidacloprid (IMI) on fruit flies. NAPs were produced using a newly developed generator which employs electro-hydrodynamic atomization of IMI solution in ethanol. Exposure of Drosophila melanogaster to the IMI NAPs at a concentration of C = 2.7 ±0.1 ng/cm~3 caused knockdown in half of the flies in T_(50) = 88 ± 14 min at 22 ℃ and in T_(50) = 36 ± 2 min at 33 ℃. A number of special experiments precluded IMI volatilization and contact or oral action of IMI upon exposure to the NAPs. It was shown that only the fraction of NAPs in the size range of 7-300 nm is responsible for the knockdown and that dependence of T_(50) on the NAPs' fraction mass follows Haber's rule, C × T_(50) = const. Comparison with the oral doses obtained when flies were fed an IMI-sue rose mixture revealed that the inhaled doses that caused knockdown were 2 orders of magnitude lower than the oral ones. This new technology may be used to quickly eliminate insects with nanoaerosols of nonvolatile insecticides in greenhouses and other closed environments.
机译：该报告描述了吡虫啉（IMI）的纳米气溶胶颗粒（NAP）对果蝇的影响。 NAP是使用新开发的发生器生产的，该发生器采用了IMI乙醇溶液的电流体动力学雾化功能。果蝇暴露于浓度为C = 2.7±0.1 ng / cm〜3的IMI NAPs时，在22℃和T_（50）= 36的T_（50）= 88±14分钟时，一半果蝇被击倒。在33℃下±2分钟。大量的特殊实验排除了IMI挥发和接触NAP后IMI的接触或口服作用。结果表明，只有NAP分数在7-300 nm的范围内才起作用，并且T_（50）对NAP分数质量的依赖性遵循Haber规则，即C×T_（50）= const。与向果蝇喂食IMI起诉玫瑰混合物时所获得的口服剂量相比，发现导致击倒的吸入剂量比口服剂量低2个数量级。这项新技术可用于在温室和其他封闭环境中用非挥发性杀虫剂的纳米气溶胶快速消灭昆虫。

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  • 来源
    《Environmental Science & Technology》 |2015年第20期|12483-12489|共7页
  • 作者

    Victor N. Morozov; Igor L. Kanev;

  • 作者单位

    Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, Russia 142290,National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110, United States;

    Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, Russia 142290;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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