Highly sensitive and selective fluorescent chemosensor for Ag+ based on a coumarin-Se2N chelating conjugate

A highly sensitive and selective fluorescent chemosensor SC1 for Ag+ based on a coumarin-Se2N chelating conjugate has been synthesized and characterized. Due to inhibiting a photoinduced electron transfer (PET) quenching pathway, a fluorescent enhancement factor of 4-fold is observed under the bindi...

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Published inChemical communications (Cambridge, England) Vol. 47; no. 8; pp. 2408 - 2410
Main Authors Huang, Shanshan, He, Song, Lu, Yan, Wei, Fangfang, Zeng, Xianshun, Zhao, Liancheng
Format Journal Article
LanguageEnglish
Published CAMBRIDGE Royal Soc Chemistry 01.01.2011
Subjects
Binding
Cations
Chelating
Chelating Agents - chemistry
chemical communication
Chemistry
Chemistry, Multidisciplinary
Conjugates
Coumarins - chemical synthesis
Coumarins - chemistry
detection limit
Electron transfer
Electron Transport
fluorescence
Organoselenium Compounds - chemical synthesis
Organoselenium Compounds - chemistry
Pathways
Physical Sciences
Quenching
Science & Technology
Selenium - chemistry
silver
Silver - analysis
Spectrometry, Fluorescence - methods
Tomography
SILVER ION
RECOGNITION
ESCHERICHIA-COLI
SENSOR MOLECULES
ELECTRODE
ADENINE
RECEPTORS
DERIVATIVES
NEUTRAL CARRIER
AQUEOUS-SOLUTION
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Summary:A highly sensitive and selective fluorescent chemosensor SC1 for Ag+ based on a coumarin-Se2N chelating conjugate has been synthesized and characterized. Due to inhibiting a photoinduced electron transfer (PET) quenching pathway, a fluorescent enhancement factor of 4-fold is observed under the binding of the Ag+ cation to the chemosensor SC1 with a detection limit down to the 10(-8) M range.
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ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/c0cc04589f