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Highly selective ensembles for D-fructose based on fluorescent method in aqueous solution.

Zhijun Wang¹, Haiying Lei, Chengyong Zhou

¹Department of Chemistry, Changzhi University, Changzhi 046011, PR China.

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy

|March 3, 2012

Summary

New fluorescent probes using anionic polyelectrolyte poly(sodium 3-styrenesulfonate) (PPPSO(3)Na) and viologen quenchers (BBVs) offer high sensitivity and selectivity for detecting d-fructose. These probes provide a novel "on-off-on" fluorescence response for sugar sensing.

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Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores

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Published on: August 19, 2013

Area of Science:

Analytical Chemistry
Materials Science
Biochemistry

Background:

Developing selective and sensitive probes for monosaccharide detection is crucial in various scientific fields.
Existing methods for monosaccharide sensing often face challenges with selectivity and sensitivity.
Anionic polyelectrolytes and cationic viologens are known for their potential in molecular recognition and sensing applications.

Purpose of the Study:

To design and synthesize novel fluorescent sensing ensembles for monosaccharide detection.
To evaluate the sensitivity and selectivity of these ensembles towards common monosaccharides.
To explore a new mode for developing highly selective fluorescent probes.

Main Methods:

Fabrication of three sensing ensembles: PPPSO(3)Na/o-BBV, PPPSO(3)Na/m-BBV, and PPPSO(3)Na/p-BBV.
Determination of sensing performance using fluorescence spectroscopy at pH 7.4.
Assessment of selectivity and sensitivity towards seven common monosaccharides.

Main Results:

All three sensing ensembles demonstrated high sensitivity and selectivity for d-fructose.
A reversible "on-off-on" fluorescence response was observed for d-fructose detection.
The ensembles exhibited distinct fluorescence changes upon interaction with different monosaccharides.

Conclusions:

The developed PPPSO(3)Na/BBV ensembles represent a promising new platform for highly selective monosaccharide sensing.
The reversible "on-off-on" fluorescence behavior offers a unique detection mechanism.
This research provides a novel approach for designing advanced fluorescent probes for carbohydrate analysis.