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231225s2002 xx |||||o 00| ||eng c |
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|a 10.1021/la0264926
|2 doi
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|a eng
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|a DiCesare, Nicolas
|e verfasserin
|4 aut
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|a Saccharide Detection Based on the Amplified Fluorescence Quenching of a Water-Soluble Poly(phenylene ethynylene) by a Boronic Acid Functionalized Benzyl Viologen Derivative
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|c 2002
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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 Revised 27.07.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The amplified quenching of an anionic conjugated polymer, sulfonated poly(phenylene ethynylene) (PPE-SO3 -), by a cationic quencher comprising a boronic acid functionalized benzyl viologen (p-BV2+), has been used to optically detect sugars. In the absence of sugar, a strong polymer/quencher interaction leads to superlinear quenching. In the presence of sugar at pH 7.4, the dicationic viologen derivative forms a neutral zwitterionic species, reducing its ability to complex with and quench the anionic polymer's emission. Addition of sugar to the polymer/quencher system leads a large increase in the fluorescence intensity (up to 70-fold in one case). Spectral data, quenching parameters, and sugar titration curves are presented and discussed in terms of future development of glucose sensors
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|a Journal Article
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|a Pinto, Mauricio R
|e verfasserin
|4 aut
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1 |
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|a Schanze, Kirk S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lakowicz, Joseph R
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 18(2002), 21 vom: 01. Okt., Seite 7785-7787
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnas
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| 773 |
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|g volume:18
|g year:2002
|g number:21
|g day:01
|g month:10
|g pages:7785-7787
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|u http://dx.doi.org/10.1021/la0264926
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