Puerarin as an antioxidant fluorescence probe
文献类型：期刊论文
| 作者 | Tian, Yu-Xi1,2; Han, Rui-Min1; Wang, Peng1; Wu, Yi-Shi2; Zhang, Jian-Ping1; Skibsted, Leif H.3 |
| 刊名 | CHEMICAL PHYSICS LETTERS
 |
| 出版日期 | 2008-02-11 |
| 卷号 | 452期号:4-6页码:253-258 |
| ISSN号 | 0009-2614 |
| DOI | 10.1016/j.cplett.2007.12.072 |
| 英文摘要 | Diphenolic isoflavonoid puerarin fluoresces in aqueous solution with maximal intensity at pH 8.5 (Phi(fl)= 0.042, T(fl) = 1.91 ns). For acidic solutions, weak fluorescence is attributed to fluorescent 7-monophenolate formed via excited-state deprotonation of neutral puerarin. For pH > 8.5, fluorescence decreases monotonically with an unchanged lifetime, suggesting that excited-state acidity of 4'-hydroxyl remains similar to the ground-state one, and that the diphenolate is non-fluorescent. The crucial role of A-ring 7-phenolate for fluorescence of puerarin is substantiated by absence (presence) of fluorescence for the 7-propylpuerarin (4'-propylpuerarin). Puerarin and its derivatives with the unusual properties may be explored to be antioxidant fluorescence probes. (c) 2008 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000253767100005 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/64321]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Jian-Ping |
| 作者单位 | 1.Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China 2.Chinese Acad Sci, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, BNLMS, Beijing 100080, Peoples R China 3.Univ Copenhagen, Fac Life Sci, Dept Food Sci, DK-1058 Frederiksberg C, Denmark |
| 推荐引用方式 GB/T 7714 | Tian, Yu-Xi,Han, Rui-Min,Wang, Peng,et al. Puerarin as an antioxidant fluorescence probe[J]. CHEMICAL PHYSICS LETTERS,2008,452(4-6):253-258. |
| APA | Tian, Yu-Xi,Han, Rui-Min,Wang, Peng,Wu, Yi-Shi,Zhang, Jian-Ping,&Skibsted, Leif H..(2008).Puerarin as an antioxidant fluorescence probe.CHEMICAL PHYSICS LETTERS,452(4-6),253-258. |
| MLA | Tian, Yu-Xi,et al."Puerarin as an antioxidant fluorescence probe".CHEMICAL PHYSICS LETTERS 452.4-6(2008):253-258. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。