Spiropyran-based optical approaches for mercury ion sensing: Improving sensitivity and selectivity via cooperative ligation interactions using cysteine
文献类型：期刊论文
| 作者 | Shao, Na2; Gao, Xiadi2; Wang, Hao3; Yang, Ronghua1,2; Chan, Winghong3 |
| 刊名 | ANALYTICA CHIMICA ACTA
 |
| 出版日期 | 2009-11-23 |
| 卷号 | 655期号:1-2页码:1-7 |
| 关键词 | Spiropyran Metal Ions Probe Cooperative Interaction |
| ISSN号 | 0003-2670 |
| DOI | 10.1016/j.aca.2009.09.038 |
| 英文摘要 | Spiropyrans are an attractive starting point in design of optical approaches for metal ions sensing. However, the high background in aqueous solution and non-specific chelation of the spiropyran with heavy metal ions has hindered their application as reliable sensors for environmental and biological species. Here, we report on a new spiropyran-based approach for sensitive and selective sensing of Hg(2+) in aqueous solution, based on cooperative ligation interactions among the spiropyran probe, an intermediate, cysteine, and the metal ion. To test the feasibility of this design, three spiropyran scaffolds, L1-L3, with different ligation functions at the 8'-position were examined as model systems. The results demonstrate that by using cysteine, a potential ligand of Hg(2+), the spiropyran could detect 1.0 x 10(-7) M Hg(2+) in aqueous solution. Due to the specific metal-amino acid interaction, the approach exhibits selective response toward Hg(2+) over other metal ions and anions, although possible interference from Cu(2+) has to be considered at the high level of the metal ion. This approach has been used for the determination of Hg(2+) in water samples containing potential interferents with satisfactory recovery. (C) 2009 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000272405300001 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/66715]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, Ronghua |
| 作者单位 | 1.Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 3.Hong Kong Baptist Univ, Dept Chem, Kowloon Tong, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shao, Na,Gao, Xiadi,Wang, Hao,et al. Spiropyran-based optical approaches for mercury ion sensing: Improving sensitivity and selectivity via cooperative ligation interactions using cysteine[J]. ANALYTICA CHIMICA ACTA,2009,655(1-2):1-7. |
| APA | Shao, Na,Gao, Xiadi,Wang, Hao,Yang, Ronghua,&Chan, Winghong.(2009).Spiropyran-based optical approaches for mercury ion sensing: Improving sensitivity and selectivity via cooperative ligation interactions using cysteine.ANALYTICA CHIMICA ACTA,655(1-2),1-7. |
| MLA | Shao, Na,et al."Spiropyran-based optical approaches for mercury ion sensing: Improving sensitivity and selectivity via cooperative ligation interactions using cysteine".ANALYTICA CHIMICA ACTA 655.1-2(2009):1-7. |
入库方式： OAI收割
来源：化学研究所
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