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	Size-dependent toxicity of tho2 nanoparticles to green algae chlorella pyrenoidosa
	He, Xingxing1; Xie, Changjian2; Ma, Yuhui2; Wang, Lin2; He, Xiao2; Shi, Weiqun2; Liu, Xiaodong1; Liu, Ying1; Zhang, Zhiyong2,3
刊名	Aquatic toxicology
	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.
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关键词	TITANIUM-DIOXIDE NANOPARTICLES ; FRESH-WATER ; OXIDE NANOPARTICLES ; TIO2 NANOPARTICLES ; CUO NANOPARTICLES ; CEO2 ; MICROALGAE ; NANO-TIO2 ; MECHANISM ; BEHAVIOR
WOS研究方向	Marine & Freshwater Biology ; Toxicology
WOS类目	Marine & Freshwater Biology ; Toxicology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000462420600012
资助机构	National Natural Science Foundation of China ; Ministry of Science and Technology of China
内容类型	期刊论文
URI标识	http://www.corc.org.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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