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Effect of ionic strength on bioaccumulation and toxicity of silver nanoparticles in Caenorhabditis elegans

文献类型：期刊论文

作者Yang, Yaning3,4; Xu, Guangmin1,3; Xu, Shengmin1,3; Chen, Shaopeng1,3; Xu, An1,3,4; Wu, Lijun1,2,3,4
刊名ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
出版日期2018-12-15
卷号165页码:291-298
ISSN号0147-6513
关键词Silver nanoparticles Ionic strength Bioaccumulation Toxicity Caenorhabditis elegans
DOI10.1016/j.ecoenv.2018.09.008
通讯作者Xu, Shengmin(shmxu@mail.ustc.edu.cn) ; Wu, Lijun(ljw@ipp.ac.cn)
英文摘要The behavior of silver nanoparticles (AgNPs) is influenced by environmental factors which altered their bioaccumulation and toxicity. In this study, we comprehensively investigated the influence of ionic strength on the ecotoxicity of AgNPs to Caenorhabditis elegans (C. elegans) through the transfer from Escherichia coli (E. coli). Three different exposure media (deionized water, EPA water and KM) were used to pretreat AgNPs. E. coli was then exposed to these transformed AgNPs and fed to C. elegans. Our results indicated that ionic strength significantly enhanced the reproductive toxicity (germ cell corpses, brood size and lifespan) and neurotoxicity (head trash and body bend) of AgNPs in C. elegans. Moreover, ICP-MS analysis showed that higher ionic strength increased bioaccumulation of AgNPs in E. coli and the resulting Ag body burden of E. coli affected the transfer of AgNPs to C. elegans, which might be responsible for the increased toxicity to nematodes. Furthermore, we also found that the reactive oxygen species (ROS) level in C. elegans was significantly increased after exposed to E. coli contaminated with ionic strength-treated AgNPs, which might play another important role for the enhanced toxicity of AgNPs. Overall, this study showed that the bioavailability and potential ecotoxicity of AgNPs are associated with the environmental factors.
WOS关键词TITANIUM-DIOXIDE NANOPARTICLES ; TERRESTRIAL FOOD-CHAIN ; DAPHNIA-MAGNA ; ENGINEERED NANOPARTICLES ; RELEVANT CONCENTRATIONS ; MEDIA COMPOSITION ; TROPHIC TRANSFER ; BIOMAGNIFICATION ; BIOAVAILABILITY ; NANOSILVER
资助项目National Basic Research 973 Program[2014CB932002] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB14030502] ; Key Program of 13th five-year plan, CASHIPS[KP-2017-05] ; National Natural Science Foundation of China[201707144] ; National Natural Science Foundation of China[21607157] ; Anhui Provincial Natural Science Foundation[1808085QB49]
WOS研究方向Environmental Sciences & Ecology ; Toxicology
语种英语
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号WOS:000447484000035
资助机构National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Program of 13th five-year plan, CASHIPS ; Key Program of 13th five-year plan, CASHIPS ; Key Program of 13th five-year plan, CASHIPS ; Key Program of 13th five-year plan, CASHIPS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Program of 13th five-year plan, CASHIPS ; Key Program of 13th five-year plan, CASHIPS ; Key Program of 13th five-year plan, CASHIPS ; Key Program of 13th five-year plan, CASHIPS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Program of 13th five-year plan, CASHIPS ; Key Program of 13th five-year plan, CASHIPS ; Key Program of 13th five-year plan, CASHIPS ; Key Program of 13th five-year plan, CASHIPS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Program of 13th five-year plan, CASHIPS ; Key Program of 13th five-year plan, CASHIPS ; Key Program of 13th five-year plan, CASHIPS ; Key Program of 13th five-year plan, CASHIPS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/39373]  
专题中国科学院合肥物质科学研究院
通讯作者Xu, Shengmin; Wu, Lijun
作者单位1.Key Lab Environm Toxicol & Pollut Control Technol, Hefei 230031, Anhui, Peoples R China
2.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Anhui, Peoples R China
3.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab High Magnet Field & Ion Beam Phys Biol, POB 1138, Hefei 230031, Anhui, Peoples R China
4.Univ Sci & Technol China, Sch Environm Sci & Optoelect Technol, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Yaning,Xu, Guangmin,Xu, Shengmin,et al. Effect of ionic strength on bioaccumulation and toxicity of silver nanoparticles in Caenorhabditis elegans[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2018,165:291-298.
APA Yang, Yaning,Xu, Guangmin,Xu, Shengmin,Chen, Shaopeng,Xu, An,&Wu, Lijun.(2018).Effect of ionic strength on bioaccumulation and toxicity of silver nanoparticles in Caenorhabditis elegans.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,165,291-298.
MLA Yang, Yaning,et al."Effect of ionic strength on bioaccumulation and toxicity of silver nanoparticles in Caenorhabditis elegans".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 165(2018):291-298.

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来源：合肥物质科学研究院

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