Determination of L-Argininamide Based on Water-Soluble Fluorescent Conjugated Polymer-Aptamer

Water-soluble fluorescent conjugated polymer is a promising material which could be used as an optical platform in highly sensitive molecular sensors. In this paper, a simple label-free DNA sensor, which consisted of a poly(3-alkoxy-4-methylthiophene) and an aptamer, was used to detect L-argininamid...

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Main Authors: Hongliang Guan, Zhike He
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Journal of Analytical Methods in Chemistry
Online Access:http://dx.doi.org/10.1155/2013/682134
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author Hongliang Guan
Zhike He
author_facet Hongliang Guan
Zhike He
author_sort Hongliang Guan
collection DOAJ
description Water-soluble fluorescent conjugated polymer is a promising material which could be used as an optical platform in highly sensitive molecular sensors. In this paper, a simple label-free DNA sensor, which consisted of a poly(3-alkoxy-4-methylthiophene) and an aptamer, was used to detect L-argininamide (L-Arm). Due to the specific binding reaction between L-Arm and its aptamer, the proposed method can easily determinate the L-Arm through the recovery of fluorescence without any modification. Other ions or similar molecules had little effect on the detection. Moreover, there was a linear relationship between fluorescence intensity and the concentration of L-Arm. The detection limit of L-Arm was as low as 4.7 nM.
format Article
id doaj-art-da28ff7610c9458f8ab8ec2ee85f2683
institution Kabale University
issn 2090-8865
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language English
publishDate 2013-01-01
publisher Wiley
record_format Article
series Journal of Analytical Methods in Chemistry
spelling doaj-art-da28ff7610c9458f8ab8ec2ee85f26832025-02-03T06:13:57ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732013-01-01201310.1155/2013/682134682134Determination of L-Argininamide Based on Water-Soluble Fluorescent Conjugated Polymer-AptamerHongliang Guan0Zhike He1School of Environment and Civil Engineering, Wuhan Institute of Technology, Wuhan 430074, ChinaKey Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, ChinaWater-soluble fluorescent conjugated polymer is a promising material which could be used as an optical platform in highly sensitive molecular sensors. In this paper, a simple label-free DNA sensor, which consisted of a poly(3-alkoxy-4-methylthiophene) and an aptamer, was used to detect L-argininamide (L-Arm). Due to the specific binding reaction between L-Arm and its aptamer, the proposed method can easily determinate the L-Arm through the recovery of fluorescence without any modification. Other ions or similar molecules had little effect on the detection. Moreover, there was a linear relationship between fluorescence intensity and the concentration of L-Arm. The detection limit of L-Arm was as low as 4.7 nM.http://dx.doi.org/10.1155/2013/682134
spellingShingle Hongliang Guan
Zhike He
Determination of L-Argininamide Based on Water-Soluble Fluorescent Conjugated Polymer-Aptamer
Journal of Analytical Methods in Chemistry
title Determination of L-Argininamide Based on Water-Soluble Fluorescent Conjugated Polymer-Aptamer
title_full Determination of L-Argininamide Based on Water-Soluble Fluorescent Conjugated Polymer-Aptamer
title_fullStr Determination of L-Argininamide Based on Water-Soluble Fluorescent Conjugated Polymer-Aptamer
title_full_unstemmed Determination of L-Argininamide Based on Water-Soluble Fluorescent Conjugated Polymer-Aptamer
title_short Determination of L-Argininamide Based on Water-Soluble Fluorescent Conjugated Polymer-Aptamer
title_sort determination of l argininamide based on water soluble fluorescent conjugated polymer aptamer
url http://dx.doi.org/10.1155/2013/682134
work_keys_str_mv AT hongliangguan determinationoflargininamidebasedonwatersolublefluorescentconjugatedpolymeraptamer
AT zhikehe determinationoflargininamidebasedonwatersolublefluorescentconjugatedpolymeraptamer