| Tissue distribution of Ag and oxidative stress responses in the freshwater snail Bellamya aeruginosa exposed to sediment-associated Ag nanoparticles | |
| Bao, Shaopan1; Huang, Jiaolong1,2; Liu, Xiawei1,2; Tang, Wei1; Fang, Tao1 | |
| Corresponding Author | Fang, Tao(fangt@ihb.ac.cn) |
| 2018-12-10 | |
| Source Publication | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| ISSN | 0048-9697 |
| Volume | 644Pages:736-746 |
| Abstract | Silver nanoparticles (AgNPs) are among the most widely used engineered nanomaterials and may eventually accumulate in sediments. Limited information is currently available regarding the toxicity, bioaccumulation and distribution of sediment-associated AgNPs in aquatic organisms. In the present study, a freshwater snail Bellamya aeruginosa was exposed via sediment to commercial Ag particles of four nominal sizes: 20 nm (AgNPs-20), 40 nm (AgNPs-40), 80 nm (AgNPs-80), and < 10 mu m (bulk Ag), and to silver nitrate at sub-lethal concentrations (1, 10 and 100 mu g Ag/g sediment). Ag burden and biomarkers of oxidative stress were assessed in different tissues of B. aeruginosa: hepatopancreas, gonad, foot and digestive tracts. All five Ag types were available for uptake by B. aeruginosa when spiked into sediment, and Ag accumulation in different tissues presented the following pattern: hepatopancreas > gonad approximate to digestive tracts > foot. Snails accumulated higher levels of Ag from aqueous Ag than from particulate Ag. In contrast, AgNPs-40 and AgNPs-80 treatments occasionally induced higher oxidative stress than aqueous Ag, indicating the significant role of nanoparticle itself in exerting toxicity. Size-dependent toxicity of AgNPs in sediment was also found, with AgNPs-20 showing lower toxicity than other Ag particles. Overall, this study demonstrated that the toxicity of sediment-associated AgNPs to B. aeruginosa varies with size and differs from aqueous Ag. (C) 2018 Elsevier B.V. All rights reserved. |
| Keyword | Bioaccumulation Size Hepatopancreas Toxicity Aquatic organism |
| DOI | 10.1016/j.scitotenv.2018.07.011 |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| Indexed By | SCI ; SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[21477159] |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS Subject | Environmental Sciences |
| WOS ID | WOS:000445164000075 |
| WOS Keyword | SILVER NANOPARTICLES ; NEREIS-DIVERSICOLOR ; ESTUARINE POLYCHAETE ; HEDISTE-DIVERSICOLOR ; ENVIRONMENTAL FATE ; DAPHNIA-MAGNA ; TOXICITY ; BIOACCUMULATION ; LAKE ; TRANSFORMATIONS |
| Publisher | ELSEVIER SCIENCE BV |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/342005/29315 |
| Collection | 水环境工程研究中心_期刊论文 |
| Corresponding Author | Fang, Tao |
| Affiliation | 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Bao, Shaopan,Huang, Jiaolong,Liu, Xiawei,et al. Tissue distribution of Ag and oxidative stress responses in the freshwater snail Bellamya aeruginosa exposed to sediment-associated Ag nanoparticles[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,644:736-746. |
| APA | Bao, Shaopan,Huang, Jiaolong,Liu, Xiawei,Tang, Wei,&Fang, Tao.(2018).Tissue distribution of Ag and oxidative stress responses in the freshwater snail Bellamya aeruginosa exposed to sediment-associated Ag nanoparticles.SCIENCE OF THE TOTAL ENVIRONMENT,644,736-746. |
| MLA | Bao, Shaopan,et al."Tissue distribution of Ag and oxidative stress responses in the freshwater snail Bellamya aeruginosa exposed to sediment-associated Ag nanoparticles".SCIENCE OF THE TOTAL ENVIRONMENT 644(2018):736-746. |
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