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首页> 外文期刊>Environmental toxicology and chemistry >EFFECTS OF FUNCTIONALIZED FULLERENES ON BIFENTHRIN AND TRIBUFOS TOXICITY TO DAPHNIA MAGNA: SURVIVAL, REPRODUCTION, AND GROWTH RATE
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EFFECTS OF FUNCTIONALIZED FULLERENES ON BIFENTHRIN AND TRIBUFOS TOXICITY TO DAPHNIA MAGNA: SURVIVAL, REPRODUCTION, AND GROWTH RATE

机译：官能化富勒烯对多哌林和苦难对Daphnia Magna的毒性的影响：生存，繁殖和增长率

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摘要

Incorporation of carbon nanomaterials into industrial and consumer products is increasing, yet their impact on aquatic ecosystems alone and in chemical mixtures is largely unknown. Carbon nanomaterials may be found in the aquatic environment as mixtures with pesticides because of their proposed use in agriculture as smart delivery systems and nanosensors. The interaction effects of a functionalized fullerene ([ 1,2-methanofullerene C_(60)]-61-carboxylic acid) (fC_(60)) at 52.8 μg/L and the hydrophobic pesticides bifenthrin and tribufos were examined. The test organism was Daphnia magna, and response variables included 48-h survival, reproduction (bifenthrin, 70-d; tribufos, 21-d), and 10-d growth. Both pesticides reduced D. magna survival and reproduction (P < 0.05). Fullerenes significantly increased bifenthrin acute toxicity but did not significantly affect chronic endpoints or growth (p>0.05). Median lethal concentrations (LC50s), median inhibition concentrations (IC50s) for days surviving, and IC50s for reproduction were 0.86, 0.55, and 0.49 μg/L for bifenthrin; 0.22, 0.39, and 0.77 μg/L for fC_(60)-bifenthrin mix; 6.63, 9.89, and 5.79 μg/L for tribufos; and 9.17,8.17, and 6.59 μg/L for/C_(60)-tribufos mix. Mixtures did not affect instantaneous growth rate (p > 0.05). These results suggest that fC_(60) had little effect on pesticide chronic toxicity but influenced acute toxicity. Given the widespread application of nanotechnology, the influence of nanomaterials on environmental contaminants is an important consideration. Thus, our results may be useful in the development and use of nanotechnology in agricultural practices.
机译：将碳纳米材料掺入工业和消费品正在增加，但它们对单独和化学混合物对水生生态系统的影响很大程度上未知。由于其在农业用作智能输送系统和纳米传感器的型农业中，可以在水生环境中发现碳纳米材料作为杀虫剂的混合物。检查官能化富勒烯的相互作用效应（[1,2-甲基巯烯C_（60）] - 61-羧酸）（FC_（60）），52.8μg/ L和疏水性农药的BIFETHRIN和TREDUFOS。试验生物是Daphnia Magna，响应变量包括48-H生存，繁殖（Bifenthrin，70-D; Tribufos，21-D）和10-D生长。杀虫剂均减少D. Magna存活和繁殖（P <0.05）。富勒烯显着提高了比赛肾素急性毒性，但没有显着影响慢性终点或生长（P> 0.05）。中值致命浓度（LC50S），中值抑制浓度（IC 50s）存活的日期，并且繁殖的IC 50为比赛中的0.86,0.55和0.49μg/ L; fc_（60）-bifenthrin混合物0.22,0.39和0.77μg/ l; 6.63,9.89和5.79μg/ L用于婚外费用;和9.17,8.17和6.59μg/ l for / c_（60） - 轴混合。混合物不影响瞬时生长速率（p> 0.05）。这些结果表明FC_（60）对农药慢性毒性的影响很小，但影响了急性毒性。鉴于纳米技术的广泛应用，纳米材料对环境污染物的影响是重要的考虑因素。因此，我们的结果对于农业实践中纳米技术的开发和使用有用。

著录项

  • 来源
    《Environmental toxicology and chemistry》 |2010年第11期|p.2600-2606|共7页
  • 作者

    Kathryn A. Brausch; Todd A. Anderson; Philip N. Smith; Jonathan D. Maul;

  • 作者单位

    Department of Environmental Toxicology The Institute of Environmental and Human Health Texas Tech University Lubbock Texas 79409 USA;

    Department of Environmental Toxicology The Institute of Environmental and Human Health Texas Tech University Lubbock Texas 79409 USA;

    Department of Environmental Toxicology The Institute of Environmental and Human Health Texas Tech University Lubbock Texas 79409 USA;

    Department of Environmental Toxicology The Institute of Environmental and Human Health Texas Tech University Lubbock Texas 79409 USA;

  • 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
  • 中图分类
  • 关键词

    bioavailability; carboxylic acid functionalized fullerene; nanomaterial; mixture toxicity; pyrethroid;

    机译：生物利用度;羧酸官能化富勒烯;纳米材料;混合物毒性;Pytethroid.;

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