Toxicity of single-walled carbon nanotubes on green microalga Chromochloris zofingiensis
文献类型：期刊论文
| 作者 | Wang Yan ; Yang Kaijing
|
| 刊名 | CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
 |
| 出版日期 | 2013-03-01 |
| 卷号 | 31期号:2页码:306-311 |
| 关键词 | Carbon Nanotubes Pigmentation Cell Growth Chromochloris Zofingiensis |
| ISSN号 | 0254-4059 |
| 产权排序 | [Wang Yan; Yang Kaijing] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China |
| 通讯作者 | Wang, Y (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China. ywang@yic.ac.cn |
| 文献子类 | Article |
| 英文摘要 | Nanoparticles, or particles in size of 1-100 nm, are extensively used in the world in different applications. For instance, single-walled carbon nanotubes (SWCNTs) are commonly used in consumer products, such as biosensors, drug and vaccine delivery transporters, and novel biomaterials. Although nanoparticles do not cause safety concerns to consumers who use nanoparticle-containing products, these small particles are potentially harmful for workers who produce them in factories or in cases of discharge to aquatic ecosystems. SWCNTs do not have a natural analogue, so the effects on health of their disposal remain largely unknown. In this study, we evaluated the effects of SWCNTs on a population of the green microalga Chromochloris zofingiensis and the profile and production of pigments and fatty acids. The alga was incubated with SWCNTs for 6 days in 0 (control), 40, 80, 160, or 320 mg/L concentrations. SWCNTs showed both positive and negative effects on the growth of C. zofingiensis, with a biomass enhancement at low levels (40-160 mg/L) but inhibition at high levels (320 mg/L). By contrast, a decreased accumulation of fatty acids and pigments of C. zofingiensis was observed over the range of the tested concentrations. These results indicate that the markers on the inhibitive toxicity of SWCNTs are increasingly sensitive in the following order: biomass and fatty acids < primary carotenoids < chlorophylls < secondary carotenoids. C. zofingiensis is a suitable microalga for evaluating the ecotoxicological hazards of SWCNTs, especially in terms of pigmentation response.; Nanoparticles, or particles in size of 1-100 nm, are extensively used in the world in different applications. For instance, single-walled carbon nanotubes (SWCNTs) are commonly used in consumer products, such as biosensors, drug and vaccine delivery transporters, and novel biomaterials. Although nanoparticles do not cause safety concerns to consumers who use nanoparticle-containing products, these small particles are potentially harmful for workers who produce them in factories or in cases of discharge to aquatic ecosystems. SWCNTs do not have a natural analogue, so the effects on health of their disposal remain largely unknown. In this study, we evaluated the effects of SWCNTs on a population of the green microalga Chromochloris zofingiensis and the profile and production of pigments and fatty acids. The alga was incubated with SWCNTs for 6 days in 0 (control), 40, 80, 160, or 320 mg/L concentrations. SWCNTs showed both positive and negative effects on the growth of C. zofingiensis, with a biomass enhancement at low levels (40-160 mg/L) but inhibition at high levels (320 mg/L). By contrast, a decreased accumulation of fatty acids and pigments of C. zofingiensis was observed over the range of the tested concentrations. These results indicate that the markers on the inhibitive toxicity of SWCNTs are increasingly sensitive in the following order: biomass and fatty acids < primary carotenoids < chlorophylls < secondary carotenoids. C. zofingiensis is a suitable microalga for evaluating the ecotoxicological hazards of SWCNTs, especially in terms of pigmentation response. |
| 学科主题 | Limnology ; Oceanography |
| URL标识 | 查看原文 |
| WOS关键词 | BACTERIUM AZOSPIRILLUM-BRASILENSE ; CHLORELLA-ZOFINGIENSIS ; POPULATION-SIZE ; ORGANIC-MATTER ; ALGINATE BEADS ; STRESS ; GROWTH ; ASTAXANTHIN ; VULGARIS ; NITROGEN |
| WOS研究方向 | Marine & Freshwater Biology ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000316018300006 |
| 资助机构 | National Natural Science Foundation of China [50904051]; Science and Technology Planning Project of Yantai, China [2010247]; Open Fund of Shandong Oriental Ocean Sci-Tech Co., Ltd. [200803] |
| 公开日期 | 2013-08-14 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/6473]  |
| 专题 | 烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室 |
| 作者单位 | Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Yan,Yang Kaijing. Toxicity of single-walled carbon nanotubes on green microalga Chromochloris zofingiensis[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2013,31(2):306-311. |
| APA | Wang Yan,&Yang Kaijing.(2013).Toxicity of single-walled carbon nanotubes on green microalga Chromochloris zofingiensis.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,31(2),306-311. |
| MLA | Wang Yan,et al."Toxicity of single-walled carbon nanotubes on green microalga Chromochloris zofingiensis".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 31.2(2013):306-311. |
入库方式： OAI收割
来源：烟台海岸带研究所
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