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题名: Evaluation of nano-specific toxicity of zinc oxide, copper oxide, and silver nanoparticles through toxic ratio
作者: Zhang, Weicheng1; Liu, Xiawei1, 2; Bao, Shaopan1, 2; Xiao, Bangding1; Fang, Tao1
关键词: Nano-specific toxicity ; ZnO nanoparticles ; CuO nanoparticles ; Ag nanoparticles ; Toxic ratio ; Environmental and health risk assessment
刊名: JOURNAL OF NANOPARTICLE RESEARCH
发表日期: 2016-12-10
DOI: 10.1007/s11051-016-3689-2
卷: 18, 期:12
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Physical Sciences ; Technology
类目[WOS]: Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ; Science & Technology - Other Topics ; Materials Science
英文摘要: For safety and environmental risk assessments of nanomaterials (NMs) and to provide essential toxicity data, nano-specific toxicities, or excess toxicities, of ZnO, CuO, and Ag nanoparticles (NPs) (20, 20, and 30 nm, respectively) to Escherichia coli and Saccharomyces cerevisiae in short-term (6 h) and long-term (48 h) bioassays were quantified based on a toxic ratio. ZnO NPs exhibited no nano-specific toxicities, reflecting similar toxicities as ZnO bulk particles (BPs) (as well as zinc salt). However, CuO and Ag NPs yielded distinctly nano-specific toxicities when compared with their BPs. According to their nano-specific toxicities, the capability of these NPs in eliciting hazardous effects on humans and the environment was as follows: CuO > Ag > ZnO NPs. Moreover, long-term bioassays were more sensitive to nano-specific toxicity than short-term bioassays. Overall, nano-specific toxicity is a meaningful measurement to evaluate the environmental risk of NPs. The log T-e(particle) value is a useful parameter for quantifying NP nano-specific toxicity and enabling comparisons of international toxicological data. Furthermore, this value could be used to determine the environmental risk of NPs.
关键词[WOS]: YEAST SACCHAROMYCES-CEREVISIAE ; ZNO NANOPARTICLES ; ESCHERICHIA-COLI ; ENGINEERED NANOMATERIALS ; RISK-ASSESSMENT ; DAPHNIA-MAGNA ; IN-VITRO ; BULK ZNO ; CUO ; SIZE
语种: 英语
项目资助者: National Natural Science Foundation of China(21477159)
WOS记录号: WOS:000390006100003
ISSN号: 1388-0764
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/28765
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, 7 Donghu South Rd, Wuhan 430072, Hubei Province, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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