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Spectroscopic probe to contribution of physicochemical transformations in the toxicity of aged ZnO NPs to Chlorella vulgaris: new insight into the variation of toxicity of ZnO NPs under aging process

文献类型：期刊论文

作者Zhang, Hong1; Huang, Qing1,2,3; Xu, An1; Wu, Lijun1
刊名NANOTOXICOLOGY
出版日期2016
卷号10期号:8页码:1177-1187
关键词Algal Cells Nanotoxicology Physicochemical Transformation Raman Spectroscopy Zno Nanoparticles
DOI10.1080/17435390.2016.1196252
文献子类Article
英文摘要Zinc oxide nanoparticles (ZnO NPs) are one of the most abundantly applied nanomaterials in nanotechnology-based industries and they may cause unexpected environmental and health risks with their physicochemical transformations in the environment. Currently, there is still a lack of the in-depth understanding of the toxicity of aged ZnO NPs to aquatic organisms, particularly demanding quantitative analysis of the physicochemical transformations to distinguish their contributions in the toxicity assessment. For this purpose, therefore, we initiated the study of the toxicity of aged ZnO NPs to the model aquatic microalga, i.e. Chlorella vulgaris, and with the aid of spectroscopic tools for characterization and quantification of the physicochemical transformations, we scrutinized the toxicity variations for ZnO NPs with different aging times. As a result, we found that the toxicity altered in an abnormal manner with the aging time, i.e. the toxicity of aged ZnO NPs for 30 days showed the higher toxicity to the green alga than the fresh ZnO NPs or the ZnO NPs aged for longer time (e.g. 120 and 210 days). Through spectroscopic tools such as XRD, FTIR and Raman spectroscopy, we made both the qualitative and quantitative assessments of the physicochemical changes of the ZnO NPs, and confirmed that in the early stage, the toxicity mainly stemmed from the release of zinc ions, but with longer aging time, the neoformation of the nanoparticles played the critical role, leading to the overall reduced toxicity due to the less toxic hydrozincite and zinc hydroxide in the transformed compounds.
WOS关键词ZINC-OXIDE NANOPARTICLES ; MICROCYSTIS-AERUGINOSA ; QUANTITATIVE-ANALYSIS ; RAMAN-SPECTROSCOPY ; PARTICLE-SIZE ; WATER ; FATE ; DISSOLUTION ; BEHAVIOR ; ALGAE
WOS研究方向Science & Technology - Other Topics ; Toxicology
语种英语
WOS记录号WOS:000382337100017
资助机构Major National Scientific Research Projects(2014CB932002 ; Major National Scientific Research Projects(2014CB932002 ; Major National Scientific Research Projects(2014CB932002 ; Major National Scientific Research Projects(2014CB932002 ; Natural Science Foundation of China(21207137 ; Natural Science Foundation of China(21207137 ; Natural Science Foundation of China(21207137 ; Natural Science Foundation of China(21207137 ; CASHIPS director's fund(YZJJ201501) ; CASHIPS director's fund(YZJJ201501) ; CASHIPS director's fund(YZJJ201501) ; CASHIPS director's fund(YZJJ201501) ; 2013CB934304) ; 2013CB934304) ; 2013CB934304) ; 2013CB934304) ; 11475217) ; 11475217) ; 11475217) ; 11475217) ; Major National Scientific Research Projects(2014CB932002 ; Major National Scientific Research Projects(2014CB932002 ; Major National Scientific Research Projects(2014CB932002 ; Major National Scientific Research Projects(2014CB932002 ; Natural Science Foundation of China(21207137 ; Natural Science Foundation of China(21207137 ; Natural Science Foundation of China(21207137 ; Natural Science Foundation of China(21207137 ; CASHIPS director's fund(YZJJ201501) ; CASHIPS director's fund(YZJJ201501) ; CASHIPS director's fund(YZJJ201501) ; CASHIPS director's fund(YZJJ201501) ; 2013CB934304) ; 2013CB934304) ; 2013CB934304) ; 2013CB934304) ; 11475217) ; 11475217) ; 11475217) ; 11475217)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/24577]  
专题合肥物质科学研究院_技术生物与农业工程研究所
作者单位1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Tech Biol & Agr Engn,Key Lab Ion Beam Bioeng, Key Lab Environm Toxicol & Pollut Control Technol, Hefei, Peoples R China
2.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei, Peoples R China
3.Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Hong,Huang, Qing,Xu, An,et al. Spectroscopic probe to contribution of physicochemical transformations in the toxicity of aged ZnO NPs to Chlorella vulgaris: new insight into the variation of toxicity of ZnO NPs under aging process[J]. NANOTOXICOLOGY,2016,10(8):1177-1187.
APA Zhang, Hong,Huang, Qing,Xu, An,&Wu, Lijun.(2016).Spectroscopic probe to contribution of physicochemical transformations in the toxicity of aged ZnO NPs to Chlorella vulgaris: new insight into the variation of toxicity of ZnO NPs under aging process.NANOTOXICOLOGY,10(8),1177-1187.
MLA Zhang, Hong,et al."Spectroscopic probe to contribution of physicochemical transformations in the toxicity of aged ZnO NPs to Chlorella vulgaris: new insight into the variation of toxicity of ZnO NPs under aging process".NANOTOXICOLOGY 10.8(2016):1177-1187.

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来源：合肥物质科学研究院

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