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| 两种粒径氧化镍纳米颗粒对小球藻(Chlorella vulgaris)的生物毒性 | |
| 引用本文： | 巩宁,邵魁双,梁长华,王阳,姜涛,冯威,孙野青.两种粒径氧化镍纳米颗粒对小球藻(Chlorella vulgaris)的生物毒性[J].海洋环境科学,2011,30(4):457-460. |
| 作者姓名： | 巩宁 邵魁双 梁长华 王阳 姜涛 冯威 孙野青 |
| 作者单位： | 1. 大连海事大学环境系统生物学研究所,辽宁大连,116026 2. 国家海洋环境监测中心,辽宁大连,116023 3. 大连海事大学物理系,辽宁大连,116026 |
| 基金项目： | 国家自然科学基金(20977012); 交通部基础研究项目(2007329225040); 国家海洋局近岸海域生态环境重点实验室开放基金(201017) |
| 摘 要： | 采用藻类生物毒性测试方法(OECD201)研究了两种粒径氧化镍(NiO)纳米颗粒对小球藻(Chlorella vulgaris)的生物毒性.发现纳米颗粒的毒性与其尺度有关,7 nm NiO的毒性大于20 nm NiO,二者72 h EC50分别为18.01和74.64mgNiO/L.利用扫描电子显微镜(SEM)观察了对... |
| 关 键 词： | NiO 纳米颗粒 小球藻 生物毒性 生长抑制 扫描电镜 团聚 |
Biotoxicity of two-size nickel oxide nanoparticles on Chlorella vulgaris |
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| GONG Ning,SHAO Kui-shuang,LIANG Chang-hua,WANG Yang,JIANG Tao,FENG Wei,SUN Ye-qing.Biotoxicity of two-size nickel oxide nanoparticles on Chlorella vulgaris[J].Marine Environmental Science,2011,30(4):457-460. | |
| Authors: | GONG Ning SHAO Kui-shuang LIANG Chang-hua WANG Yang JIANG Tao FENG Wei SUN Ye-qing |
| Institution: | GONG Ning1,SHAO Kui-shuang2,LIANG Chang-hua1,WANG Yang2,JIANG Tao1,FENG Wei3,SUN Ye-qing1(1.Institute of Environmental Systems Biology,Dalian Maritime University,Dalian116026,China,2.National Marine Environmental Monitoring Center,Dalian 116023,3.Physical Department,Dalian 116026,China) |
| Abstract: | Biotoxicity of two-size nickel oxide nanoparticles on Chlorella vulgaris were determined by algal growth inhibition test and morphologic observation via scan electron microscopy(SEM).Results showed that nNiO had severe impacts on algae,caused growth inhibition and morphologic changes.The 7 nm nNiO showed higher toxic than 20 nm nNiO,with 72 h EC50 values of 18.01 and 74.64 mg NiO/L,respectively.Under the stress of NiO nanoparticles,C.vulgaris cells became wrinkled and collapsed,and the integrality of part o... |
| Keywords: | NiO nanoparticles Chlorella vulgaris biotoxicity growth inhibition SEM aggregation |
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