Photophysical properties of rhodamine isomers: A two-photon excited fluorescent sensor for trivalent chromium cation (Cr3+)
文献类型：期刊论文
| 作者 | Wan, Yan; Guo, Qianjin; Wang, Xuefei1; Xia, Andong |
| 刊名 | analytica chimica acta
 |
| 出版日期 | 2010-04-30 |
| 卷号 | 665期号:2页码:215-220 |
| 关键词 | Two-photon excitation Fluorescent sensor Trivalent chromium ion (Cr3+) Rhodamine Fluorescence on/off |
| 英文摘要 | we introduce a new rhodamine-based fluorescent chemosensor, fd8 which exhibits a distinct two-photon excited fluorescence (tpef) on/off characteristic upon binding cr3+ ions. by coordination with metal cation, conformation of fd8 changes from spirocyclic to open-ring, resulting in remarkable enhancement of absorption and fluorescence both in one- and two-photon excitations. as a result, a 29-fold enhancement of two-photon excited fluorescent intensity was observed when 10 eq. cr3+ was added to the fd8 solution. the detection limit of cr3+ cation concentration down to 1 mu m (0.01 eq. of fd8) was achieved under our experimental condition. besides the excitation within ultraviolet regime by fluorescence resonance energy transfer (fret) mechanism, the tpef on/off behavior further extends the excitation to near infrared regime (the biological optimal window of 700-1200 nm), and shows more effective sensitivity. the broad excitation wavelength, on/off fluorescence and high selectivity to cr3+ enable fd8 to be a powerful cr3+ cation sensor with potential application, especially in biological detection. to the best of our knowledge, this is the first report about two-photon fluorescent sensor for cr3+ ions. (c) 2010 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, analytical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | absorption cross-section ; aqueous-solution ; metal-ions ; off-on ; living tissue ; calcium waves ; live tissue ; hg2+ ions ; chemosensor ; probe |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000277854500014 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142198]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wan, Yan,Guo, Qianjin,Wang, Xuefei,et al. Photophysical properties of rhodamine isomers: A two-photon excited fluorescent sensor for trivalent chromium cation (Cr3+)[J]. analytica chimica acta,2010,665(2):215-220. |
| APA | Wan, Yan,Guo, Qianjin,Wang, Xuefei,&Xia, Andong.(2010).Photophysical properties of rhodamine isomers: A two-photon excited fluorescent sensor for trivalent chromium cation (Cr3+).analytica chimica acta,665(2),215-220. |
| MLA | Wan, Yan,et al."Photophysical properties of rhodamine isomers: A two-photon excited fluorescent sensor for trivalent chromium cation (Cr3+)".analytica chimica acta 665.2(2010):215-220. |
入库方式： OAI收割
来源：大连化学物理研究所
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