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A G-pentaplex-based assay for Cs+ ions in aqueous solution using a luminescent Ir(III) complex
Lin S.; Yang C.; Mao Z.; He B.; Wang Y.-T.; Leung C.-H.; Ma D.-L.
2016
Source PublicationBiosensors and Bioelectronics
Volume77Pages:609
Abstract

A series of 5 randomly designed in-house cyclometalated Ir(III) complexes were examined for their application in G-pentaplex probes and the "proof-of-principle" concept in G-pentaplex-based Cs+ ions detection. The G-pentaplex-forming sequence (DNA1, 5'-T(iG)4T-3', where iG=isoguanine) is present in single strand DNA form ab initio, however, the addition of Cs+ ions lead to formation of the intermolecular G-pentaplex structure which is identified by the novel Ir(III) complex 1 afterward and produce an enhanced luminescence signal for Cs+ ions monitoring. To the best of our knowledge, this is the first G-pentaplex probe and also the first G-pentaplex-based label-free detection platform for Cs+ ions reported in the literature. The monitoring of spiked Cs+ ions in natural water samples demonstrates the potential application and technical sound of this "proof-of-principle" concept sensing platform. © 2015 Elsevier B.V.

KeywordCs++ G-pentaplex Iridium(Iii) Complex Label-free Detection
DOI10.1016/j.bios.2015.10.026
URLView the original
Indexed BySCI
Language英语
WOS Research AreaBiophysics ; Biotechnology & Applied Microbiology ; Chemistry ; Electrochemistry ; Science & Technology - Other Topics
WOS SubjectBiophysics ; Biotechnology & Applied Microbiology ; Chemistry, Analytical ; Electrochemistry ; Nanoscience & Nanotechnology
WOS IDWOS:000366766900088
The Source to ArticleScopus
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Cited Times [WOS]:9   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Chinese Medical Sciences
Affiliation1.Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong
2.State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
3.Partner State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong
Recommended Citation
GB/T 7714
Lin S.,Yang C.,Mao Z.,et al. A G-pentaplex-based assay for Cs+ ions in aqueous solution using a luminescent Ir(III) complex[J]. Biosensors and Bioelectronics,2016,77:609.
APA Lin S..,Yang C..,Mao Z..,He B..,Wang Y.-T..,...&Ma D.-L..(2016).A G-pentaplex-based assay for Cs+ ions in aqueous solution using a luminescent Ir(III) complex.Biosensors and Bioelectronics,77,609.
MLA Lin S.,et al."A G-pentaplex-based assay for Cs+ ions in aqueous solution using a luminescent Ir(III) complex".Biosensors and Bioelectronics 77(2016):609.
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