Detection of silver(I) ions based on the controlled self-assembly of a perylene fluorescence probe
文献类型：期刊论文
| 作者 | Yang Y ; Li WY ; Qi H ; Zhang QF ; Chen J ; Wang Y ; Wang B ; Wang SJ ; Yu C |
| 刊名 | analytical biochemistry
 |
| 出版日期 | 2012 |
| 卷号 | 430期号:1页码:48-52 |
| 关键词 | FUNCTIONALIZED GOLD NANOPARTICLES CARBON-PASTE ELECTRODE COLORIMETRIC DETECTION SELECTIVE DETECTION AQUEOUS-SOLUTIONS DNA DUPLEXES SENSOR HG2+ PAIRS PRECONCENTRATION |
| ISSN号 | 0003-2697 |
| 通讯作者 | qi h |
| 中文摘要 | in the current work, we report a label-free fluorescence turn-on approach for the sensitive and selective sensing of ag+. a cationic perylene derivative, compound a, was used as the fluorescence probe. compound a monomer is strongly fluorescent, and the fluorescence can be efficiently quenched through self-aggregation (self-assembly). a cytosine (c)-rich oligonucleotide, oligo-c, was employed. in the absence of ag+, oligo-c induced strong compound a aggregation due to electrostatic interactions in aqueous media, and very weak fluorescence signal was detected. however, in the presence of ag+, the specific interactions between oligo-c and ag+ induced hairpin structure formation of oligo-c through c-ag+-c bonding interactions. oligo-c binding to compound a aggregates was weakened; therefore, compound a monomer could be released and detected. the intensity of the fluorescence signal was directly related to the amount of ag+ added to the assay solution. our method is highly sensitive-a limit of detection of 5 nm was obtained-and also very selective. ag+ detection in complex sample mixtures was also demonstrated. (c) 2012 elsevier inc. all rights reserved. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000309646800008 |
| 公开日期 | 2013-04-22 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/47882]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Yang Y,Li WY,Qi H,et al. Detection of silver(I) ions based on the controlled self-assembly of a perylene fluorescence probe[J]. analytical biochemistry,2012,430(1):48-52. |
| APA | Yang Y.,Li WY.,Qi H.,Zhang QF.,Chen J.,...&Yu C.(2012).Detection of silver(I) ions based on the controlled self-assembly of a perylene fluorescence probe.analytical biochemistry,430(1),48-52. |
| MLA | Yang Y,et al."Detection of silver(I) ions based on the controlled self-assembly of a perylene fluorescence probe".analytical biochemistry 430.1(2012):48-52. |
入库方式： OAI收割
来源：长春应用化学研究所
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