ICCAS OpenIR
Spiropyran-based optical approaches for mercury ion sensing: Improving sensitivity and selectivity via cooperative ligation interactions using cysteine
Shao, Na2; Gao, Xiadi2; Wang, Hao3; Yang, Ronghua1,2; Chan, Winghong3
2009-11-23
Source PublicationANALYTICA CHIMICA ACTA
ISSN0003-2670
Volume655Issue:1-2Pages:1-7
AbstractSpiropyrans 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.
KeywordSpiropyran Metal Ions Probe Cooperative Interaction
DOI10.1016/j.aca.2009.09.038
Indexed BySCI
Language英语
WOS IDWOS:000272405300001
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/66716
Collection中国科学院化学研究所
Corresponding AuthorYang, Ronghua
Affiliation1.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
Recommended Citation
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.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Shao, Na]'s Articles
[Gao, Xiadi]'s Articles
[Wang, Hao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Shao, Na]'s Articles
[Gao, Xiadi]'s Articles
[Wang, Hao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Shao, Na]'s Articles
[Gao, Xiadi]'s Articles
[Wang, Hao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.