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首页> 外文期刊>Environmental Science & Technology >Zein Nanoparticles Uptake by Hydroponically Grown Soybean Plants
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Zein Nanoparticles Uptake by Hydroponically Grown Soybean Plants

机译：水培大豆植物对玉米醇溶蛋白纳米颗粒的吸收

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摘要

In the interest of developing and characterizing a polymeric nanoparticle pesticide delivery vehicle to soybeans, zein nanoparticle (ZNP) uptake by the roots and biodistribution to the leaves of soybean plants was measured. Zein was tagged with fluorescein isothiocyanate (FITC) and made into nanoparticles (135 +/- 3 nm diameter. 0.202 +/- 0.034 PDI and 81 +/- 4 mV zeta-potential at pH 6) using an emulsion-diffusion method. After 10 days of hydroponic exposure, association between particles and roots of plants was found to vary based on bulk nanoparticle concentration. While 0.37 mg NP/mg dry weight were detected in roots immersed in 0.88 mg NP/mL nanoparticle suspension, 0.58 mg NP/mg dry weight associated with roots immersed in a high dose nanoparticle suspension of 1.75 mg NP/mL at 10 days. Nanoparticle root uptake followed second order kinetics. A small amount of increased fluorescence was detected in the hydroponically exposed plant's leaves, suggesting that either small amounts of particles or other fluorescent contaminants of zein were up taken by the roots and biodistributed within the plant. To the authors' knowledge, this is the first study in which the uptake and time-dependent association between polymeric nanoparticles and soybeans are quantified.
机译：为了开发和表征对大豆的聚合物纳米颗粒农药递送载体，测量了大豆根部对玉米醇溶蛋白纳米颗粒（ZNP）的吸收以及对大豆植物叶片的生物分布。玉米蛋白用异硫氰酸荧光素（FITC）标记，并使用乳液扩散法制成纳米颗粒（直径135 +/- 3nm。0.26+/- 0.034 PDI和pH值为6的81 +/- 4 mVζ电位）。水耕暴露10天后，发现植物颗粒与根之间的缔合会根据纳米粒子的整体浓度而变化。在浸没到0.88 mg NP / mL纳米颗粒悬浮液的根中检测到0.37 mg NP / mg干重，而在10天时，浸没在1.75 mg NP / mL的高剂量纳米颗粒悬浮液中的根相关联的0.58 mg NP / mg干重。纳米颗粒根的吸收遵循二级动力学。在水培暴露的植物叶片中检测到少量荧光增强，这表明少量的玉米蛋白颗粒或玉米醇溶蛋白的其他荧光污染物被根部吸收并在植物内生物分布。据作者所知，这是第一项量化聚合物纳米颗粒与大豆之间的吸收和时间相关性的研究。

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  • 来源
    《Environmental Science & Technology》 |2017年第24期|14065-14071|共7页
  • 作者

    Ristroph Kurt D.; Astete Carlos E.; Bodoki Ede; Sabliov Cristina M.;

  • 作者单位

    Louisiana State Univ, Dept Biol & Agr Engn, 141 EB Doran Bldg, Baton Rouge, LA 70803 USA;

    Louisiana State Univ, Dept Biol & Agr Engn, 141 EB Doran Bldg, Baton Rouge, LA 70803 USA;

    Louisiana State Univ, Dept Biol & Agr Engn, 141 EB Doran Bldg, Baton Rouge, LA 70803 USA;

    Louisiana State Univ, Dept Biol & Agr Engn, 141 EB Doran Bldg, Baton Rouge, LA 70803 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);
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