Label-free selective sensing of mercury(II) via reduced aggregation of the perylene fluorescent probe
文献类型：期刊论文
| 作者 | Wang B ; Wang FY ; Jiao HP ; Yang XY ; Yu C |
| 刊名 | analyst
 |
| 出版日期 | 2010 |
| 卷号 | 135期号:8页码:1986-1991 |
| 关键词 | FUNCTIONALIZED GOLD NANOPARTICLES AQUEOUS-SOLUTIONS COLORIMETRIC DETECTION TERPYRIDYL COMPLEXES TECHNICAL REPORT ION HG2+ DNA DYES ASSEMBLIES INDICATOR |
| ISSN号 | 0003-2654 |
| 通讯作者 | yu c |
| 中文摘要 | in the present work, we report a fluorescence turn-on approach for the sensitive and selective detection of hg2+. a cationic perylene derivative (compound 1) was used as the fluorescence probe, and a thymine-rich oligonucleotide (oligo-m) was employed for the specific interaction with hg2+. compound 1 shows strong tendency to self-aggregate into linear chain structures in aqueous media because of the pi-pi stacking interactions of its planar aromatic ring structure. the compound 1 free monomer is strongly fluorescent, whereas its aggregates are not fluorescent. when oligo-m and compound 1 were mixed, oligo-m induced strong compound 1 aggregation and resulted in significant fluorescence quenching. in the presence of hg2+, the specific interactions between oligo-m and hg2+ induced hairpin structure formation of oligo-m and thus weakened its binding to compound 1 aggregates. as a result, free probe monomers were released, and increased fluorescence was observed. the fluorescence intensity increase was in direct proportion to the concentration of hg2+ added. our method provides a simple, fast, and efficient means for hg2+ quantification, it is highly sensitive with a limit of detection of 1 nm, and is also highly selective against other common metal ions. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000280087000020 |
| 公开日期 | 2012-04-26 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/43589]  |
| 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 | Wang B,Wang FY,Jiao HP,et al. Label-free selective sensing of mercury(II) via reduced aggregation of the perylene fluorescent probe[J]. analyst,2010,135(8):1986-1991. |
| APA | Wang B,Wang FY,Jiao HP,Yang XY,&Yu C.(2010).Label-free selective sensing of mercury(II) via reduced aggregation of the perylene fluorescent probe.analyst,135(8),1986-1991. |
| MLA | Wang B,et al."Label-free selective sensing of mercury(II) via reduced aggregation of the perylene fluorescent probe".analyst 135.8(2010):1986-1991. |
入库方式： OAI收割
来源：长春应用化学研究所
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