Quantifying the adsorption and uptake of CuO nanoparticles by wheat root based on chemical extractions
文献类型：期刊论文
| 作者 | Zhou, Dongmei; Jin, Shengyang; Li, Lianzhen; Wang, Yu; Weng, Nanyan |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2011 |
| 卷号 | 23期号:11页码:1852-1857 |
| 关键词 | CuO-NPs root surface adsorption uptake |
| ISSN号 | 1001-0742 |
| DOI | 10.1016/S1001-0742(10)60646-8 |
| 通讯作者 | Zhou, Dongmei(dmzhou@issas.ac.cn) |
| 英文摘要 | Extensive application of metal nanoparticles is attracting more attention because of their potential environmental risks. Many studies have focused on the uptake of metal nanoparticles (NPs) by plant, but the adsorption of nanoparticles on root surface is often mistakenly regarded as their uptake. This study optimized the methods to distinguish the adsorption and uptake of CuO-NPs on the wheat root by applying different metal competing ions (Na+, Mg2+, and La3+), surfactant (i.e., sodium dodecyl benzene sulfonate, SDBS), or complexing agents like NaOAc and Na(4)EDTA, as well as ultrasonic technique. The results indicated that some CuO-NPs is strongly adsorbed on the plant root surface, and part of them by mechanical adhesion. Competing ions could not desorb the CuO-NPs from the root surface, while NaOAc and Na(4)EDTA well dissolved the adsorbed CuO-NPs. In addition, the uptake and adsorption of CuO-NPs increased with increasing exposure concentrations of CuO-NPs in the range of 5-200 mg/L. The amount of CuO-NPs adsorption is always lower than that of their uptake. |
| 收录类别 | SCI |
| WOS关键词 | PHYTOTOXICITY |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000297179100013 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2559061 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Zhou, Dongmei |
| 作者单位 | Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Dongmei,Jin, Shengyang,Li, Lianzhen,et al. Quantifying the adsorption and uptake of CuO nanoparticles by wheat root based on chemical extractions[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2011,23(11):1852-1857. |
| APA | Zhou, Dongmei,Jin, Shengyang,Li, Lianzhen,Wang, Yu,&Weng, Nanyan.(2011).Quantifying the adsorption and uptake of CuO nanoparticles by wheat root based on chemical extractions.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,23(11),1852-1857. |
| MLA | Zhou, Dongmei,et al."Quantifying the adsorption and uptake of CuO nanoparticles by wheat root based on chemical extractions".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 23.11(2011):1852-1857. |
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来源：南京土壤研究所
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