Study of the interactions between fluoroquinolones and human serum albumin by affinity capillary electrophoresis and fluorescence method
文献类型：期刊论文
| 作者 | Zhang, Li-Wei; Wang, Kun; Zhang, Xin-Xiang |
| 刊名 | ANALYTICA CHIMICA ACTA
 |
| 出版日期 | 2007-11-05 |
| 卷号 | 603期号:1页码:101-110 |
| ISSN号 | 0003-2670 |
| 关键词 | Affinity Capillary Electrophoresis Separation Fluorescence Method Binding Constant Fluoroquinolones Human Serum Albumin |
| DOI | 10.1016/j.aca.2007.09.021 |
| 英文摘要 | The interactions between fluoroquinolones and human serum albumin (HSA) were investigated by affinity capillary electrophoresis (ACE) and fluorescence quenching technique. Based on the efficient separation of several fluoroquinolones using a simple phosphate buffer, the binding constants of fluoroquinolones with HSA were determined simultaneously during one set of electrophoresis by ACE method. The thermodynamic parameters were obtained from data at different temperatures, and the negative Delta H and Delta S values showed that both hydrogen bonds and van der Waals interaction played major roles in the binding of fluoroquinolones to HSA. The interactions were also studied by fluorescence quenching technique. The results of fluorescence titration revealed that fluoroquinolones had the strong ability to quenching the intrinsic fluorescence of HSA through the static quenching procedure. The binding site number n, apparent binding constant K-b and the Stern-Volmer quenching constant K-sv were determined. The thermodynamic parameters were also studied by fluorescence method, and the results were consonant with that of ACE. (C) 2007 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000250799500015 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/61677]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Xin-Xiang |
| 作者单位 | Peking Univ, Coll Med, BNLMS, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Li-Wei,Wang, Kun,Zhang, Xin-Xiang. Study of the interactions between fluoroquinolones and human serum albumin by affinity capillary electrophoresis and fluorescence method[J]. ANALYTICA CHIMICA ACTA,2007,603(1):101-110. |
| APA | Zhang, Li-Wei,Wang, Kun,&Zhang, Xin-Xiang.(2007).Study of the interactions between fluoroquinolones and human serum albumin by affinity capillary electrophoresis and fluorescence method.ANALYTICA CHIMICA ACTA,603(1),101-110. |
| MLA | Zhang, Li-Wei,et al."Study of the interactions between fluoroquinolones and human serum albumin by affinity capillary electrophoresis and fluorescence method".ANALYTICA CHIMICA ACTA 603.1(2007):101-110. |
入库方式： OAI收割
来源：化学研究所
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