Interaction of acetamiprid with extracellular polymeric substances (EPS) from activated sludge: A fluorescence study
文献类型：期刊论文
| 作者 | Song ; Mu ; Zhang ; Pan ; Wenjuan ; Guijin ; Daoyong ; Xiangliang |
| 刊名 | AFRICAN JOURNAL OF BIOTECHNOLOGY
 |
| 出版日期 | 2010 |
| 卷号 | 9期号:45页码:7667-7673 |
| 关键词 | BOVINE SERUM-ALBUMIN ANAEROBIC SLUDGE BINDING |
| ISSN号 | 1684-5315 |
| 通讯作者 | Pan, XL, Chinese Acad Sci, Lab Environm Pollut & Bioremediat, Xinjiang Inst Ecol & Geog, 818 Beijing So RD, Urumqi, Peoples R China |
| 中文摘要 | Extracellular polymeric substances (EPS) are important components of activated sludge and it plays an important role in removing pollutants. The interaction between EPS and organic pollutants is still little known. In the present study, the interaction of soluble/bound EPS with acetamiprid, a neonicotinoid insecticide, was investigated using the three-dimensional excitation-emission matrix (EEM) fluorescence spectroscopy. The fluorescence spectra of EPS revealed that there were two classes of protein-like fluorophores in soluble/bound EPS and one class of fulvic acid-like fluorophore, in addition, in bound EPS. The quenching of protein-like fluorescence by acetamiprid indicated that static quenching (at peak B) and combined quenching (at peak A) occurred simultaneously. The interaction of acetamiprid with EPS was observed to have resulted in the formation of acetamiprid-EPS complexes. The binding constants of the soluble EPS for acetamiprid were greater than those of the bound EPS, indicating the soluble EPS had stronger binding capacity for acetamiprid than the bound EPS. This study confirmed that EPS (soluble/bound) play important roles in biosorption of organic pollutants by activated sludge and also indicated that they may serve as a protective barrier against toxic organic matter, for the microorganisms. |
| 学科主题 | 生物化学与分子生物学 |
| 收录类别 | SCI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/9868]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | Song,Mu,Zhang,et al. Interaction of acetamiprid with extracellular polymeric substances (EPS) from activated sludge: A fluorescence study[J]. AFRICAN JOURNAL OF BIOTECHNOLOGY,2010,9(45):7667-7673. |
| APA | Song.,Mu.,Zhang.,Pan.,Wenjuan.,...&Xiangliang.(2010).Interaction of acetamiprid with extracellular polymeric substances (EPS) from activated sludge: A fluorescence study.AFRICAN JOURNAL OF BIOTECHNOLOGY,9(45),7667-7673. |
| MLA | Song,et al."Interaction of acetamiprid with extracellular polymeric substances (EPS) from activated sludge: A fluorescence study".AFRICAN JOURNAL OF BIOTECHNOLOGY 9.45(2010):7667-7673. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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