Size-dependent toxicity of tho2 nanoparticles to green algae chlorella pyrenoidosa
文献类型：期刊论文
| 作者 | He, Xingxing1; Xie, Changjian2; Ma, Yuhui2; Wang, Lin2; He, Xiao2; Shi, Weiqun2; Liu, Xiaodong1; Liu, Ying1; Zhang, Zhiyong2,3 |
| 刊名 | Aquatic toxicology
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 209页码:113-120 |
| 关键词 | Thorium oxide Nanoparticles Membrane damage Reactive oxygen species |
| ISSN号 | 0166-445X |
| DOI | 10.1016/j.aquatox.2019.02.003 |
| 通讯作者 | Ma, yuhui(mayh@ihep.ac.cn) ; Liu, ying(yingliu@njust.edu.cn) ; Zhang, zhiyong(zhangzhy@ihep.ac.cn) |
| 英文摘要 | Thorium (th) is a natural radioactive element present in the environment and has the potential to be used as a clean nuclear fuel. relatively little is known about the aquatic toxicity of th, especially in nanoparticulate form, which may be the main chemical species of th in the natural waters. in this study, impacts of tho2 nanoparticles (nps) with two different sizes (52 +/- 5 nm, s-tho2 vs. 141 +/- 6 nm, b-tho2) on a green alga chlorella pyrenoidosa (c. pyrenoidosa) were evaluated. results indicated that c. pyrenoidosa was more sensitive to s-tho2 (96-h ec30 = 64.1 mu m) than b-tho2 (96-h ec30 = 100.2 mu m). exposure to 200 pm of tho2 nps reduced the chlorophyll -a and chlorophyll-b contents of the algal cells. at 96 h, sem and tem showed that more agglomerates of s-tho2 than those of b-tho2 were attached onto the surface of algal cells. reactive oxygen species (ros) generation and membrane damage were induced after the attachment of high concentrations of tho2 nps. the heteroagglomeration between tho2 nps and algal cells and increased oxidative stress might play important roles in the toxicity of tho2 nps. to the best of our knowledge, this is the first report on aquatic toxicity of tho2 nps. |
| WOS关键词 | TITANIUM-DIOXIDE NANOPARTICLES ; FRESH-WATER ; OXIDE NANOPARTICLES ; TIO2 NANOPARTICLES ; CUO NANOPARTICLES ; CEO2 ; MICROALGAE ; NANO-TIO2 ; MECHANISM ; BEHAVIOR |
| 资助项目 | National Natural Science Foundation of China[11575208] ; National Natural Science Foundation of China[11675190] ; National Natural Science Foundation of China[11875267] ; Ministry of Science and Technology of China[2016YFA0201604] |
| WOS研究方向 | Marine & Freshwater Biology ; Toxicology |
| WOS类目 | Marine & Freshwater Biology ; Toxicology |
| 语种 | 英语 |
| WOS记录号 | WOS:000462420600012 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China ; Ministry of Science and Technology of China |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2160718 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Ma, Yuhui; Liu, Ying; Zhang, Zhiyong |
| 作者单位 | 1.Nanjing Univ Sci & Technol, Sch Environm & Biol Engn, Nanjing 210094, Jiangsu, Peoples R China 2.Chinese Acad Sci, Key Lab Biomed Effects Nanomat & Nanosafety, Inst High Energy Phys, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Xingxing,Xie, Changjian,Ma, Yuhui,et al. Size-dependent toxicity of tho2 nanoparticles to green algae chlorella pyrenoidosa[J]. Aquatic toxicology,2019,209:113-120. |
| APA | He, Xingxing.,Xie, Changjian.,Ma, Yuhui.,Wang, Lin.,He, Xiao.,...&Zhang, Zhiyong.(2019).Size-dependent toxicity of tho2 nanoparticles to green algae chlorella pyrenoidosa.Aquatic toxicology,209,113-120. |
| MLA | He, Xingxing,et al."Size-dependent toxicity of tho2 nanoparticles to green algae chlorella pyrenoidosa".Aquatic toxicology 209(2019):113-120. |
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来源：高能物理研究所
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