Bioaccumulation and Toxicity of C-13-Skeleton Labeled Graphene Oxide in Wheat
文献类型：期刊论文
| 作者 | Yang, ST; Chen, LY; Chang, XL ; Qu, XL; Li, HL; Wang, CL; Chang XL(常雪灵); Li HL(李红亮); Wang CL(王成龙)
|
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2017 |
| 卷号 | 51期号:17页码:10146-10153 |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.7b00822 |
| 文献子类 | Article |
| 英文摘要 | Graphene nanomaterials have many diverse applications, but are considered to be emerging environmental pollutants. Thus, their potential environmental risks and biosafety are receiving increased attention. Bioaccumulation and toxicity evaluations in plants are essential for biosafety assessment. In this study, C-13-stable isotope labeling of the carbon skeleton of graphene oxide (GO) was applied to investigate the bioaccumulation and toxicity of GO in wheat. Bioaccumulation of GO was accurately quantified according to the C-13/C-12 ratio. Wheat seedlings were exposed to C-13-labeled GO at 1.0 mg/mL in nutrient solution for 15 d. C-13-GO accumulated predominantly in the root with a content of 112 mu g/g at day 15, hindered the development and growth of wheat plants, disrupted root structure and cellular ultrastructure, and promoted oxidative stress. The GO that accumulated in the root showed extremely limited translocation to the stem and leaves. During the experimental period, GO was excreted slowly from the root. GO inhibited the germination of wheat seeds at high concentrations (>= 0.4 mg/mL). The mechanism of GO toxicity to wheat may be associated with oxidative stress induced by GO bioaccumulation, reflected by the changes of malondialdehyde concentration, catalase activity, and peroxidase activity. The results demonstrate that 13C labeling is a promising method to investigate environmental impacts and fates of carbon nanomaterials in biological systems. |
| 电子版国际标准刊号 | 1520-5851 |
| WOS关键词 | CARBON NANOTUBES ; HYDROTHERMAL PREPARATION ; ARABIDOPSIS-THALIANA ; OXIDATIVE STRESS ; IN-VIVO ; NANOPARTICLES ; GROWTH ; L. ; NANOMATERIALS ; CYTOTOXICITY |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000410255800078 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285147]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yang, ST,Chen, LY,Chang, XL,et al. Bioaccumulation and Toxicity of C-13-Skeleton Labeled Graphene Oxide in Wheat[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(17):10146-10153. |
| APA | Yang, ST.,Chen, LY.,Chang, XL.,Qu, XL.,Li, HL.,...&王成龙.(2017).Bioaccumulation and Toxicity of C-13-Skeleton Labeled Graphene Oxide in Wheat.ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(17),10146-10153. |
| MLA | Yang, ST,et al."Bioaccumulation and Toxicity of C-13-Skeleton Labeled Graphene Oxide in Wheat".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.17(2017):10146-10153. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。