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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1021/la5039798
|2 doi
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|a pubmed24n0813.xml
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|a (DE-627)NLM244079994
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|a (NLM)25453500
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Cao, Jianhua
|e verfasserin
|4 aut
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|a Ternary system based on fluorophore-surfactant assemblies--Cu²⁺ for highly sensitive and selective detection of arginine in aqueous solution
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 13.08.2015
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|a Date Revised 23.12.2014
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a A new cationic dansyl derivative-based (DIlSD) fluorescence probe was designed and synthesized. Its combination with anionic surfactant SDS assemblies shows enhanced fluorescence intensity and blue-shifted maximum wavelength. Its fluorescence can be slightly quenched by Cu(2+); however, the fluorescence quenching efficiency by Cu(2+) is highly increased upon titration of arginine (Arg). As a result, the ternary system containing the cationic fluorophore, anionic surfactant, and Cu(2+) functions as a highly sensitive and selective sensor to Arg. The optimized sensor system displays a detection limit of 170 nM, representing the highest sensitivity to Arg in total aqueous solution by a fluorescent sensor. Control experiments reveal that the imidazolium groups in the fluorophore, the anionic surfactant, and Cu(2+) all play important roles in the process of sensing Arg. The electrostatic interaction between the cationic fluorophore and anionic surfactants facilitates the binding of imidazolium rings with Cu(2+), the surfactant surface-anchored Cu(2+) is responsible for further binding of Arg, and the electrostatic interaction between anionic surfactants and positively charged amino acids accounts for the selective responses to Arg
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Dansyl Compounds
|2 NLM
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|a Fluorescent Dyes
|2 NLM
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|a Imidazoles
|2 NLM
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|a Solutions
|2 NLM
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|a Surface-Active Agents
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a Sodium Dodecyl Sulfate
|2 NLM
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|a 368GB5141J
|2 NLM
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|a Copper
|2 NLM
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|a 789U1901C5
|2 NLM
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|a imidazole
|2 NLM
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|a 7GBN705NH1
|2 NLM
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|a Arginine
|2 NLM
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|a 94ZLA3W45F
|2 NLM
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1 |
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|a Ding, Liping
|e verfasserin
|4 aut
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1 |
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|a Hu, Wenting
|e verfasserin
|4 aut
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1 |
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|a Chen, Xiangli
|e verfasserin
|4 aut
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|a Chen, Xiao
|e verfasserin
|4 aut
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|a Fang, Yu
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 30(2014), 50 vom: 23. Dez., Seite 15364-72
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g volume:30
|g year:2014
|g number:50
|g day:23
|g month:12
|g pages:15364-72
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|u http://dx.doi.org/10.1021/la5039798
|3 Volltext
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|d 30
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|e 50
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