Document Detail

A New Disubstituted Polyacetylene for the Detection of α-Amino Acids.
MedLine Citation:
PMID:  21706594     Owner:  NLM     Status:  In-Data-Review    
New imidazole-functionalized disubstituted polyacetylene was synthesized by utilizing the postfunctional strategy. In addition, its ability to sense copper ions and α-amino acids by fluorescence quenching has been studied. The quenching of the fluorescence of the imidazole-functionalized disubstituted polyacetylene was observed at a very low level of Cu(2+) (7.0 × 10(-7) mol · L(-1) ). The fluorescent intensity decreased rapidly upon the increase of the concentration of the added solution of Cu(2+) . It was expected that the addition of α-amino acids to the solution of the polyacetylene/Cu(2+) complex could turn on the fluorescence of the polyacetylene, if α-amino acids could remove the copper ions from the complex. Glycine, was used for testing: upon the addition of glycine the quenched fluorescence of P1 turned on immediately. The detection limit was as low as 6.0 × 10(-5) mol · L(-1) .
Qi Zeng; Cathy K W Jim; Jacky W Y Lam; Yongqiang Dong; Zhen Li; Jingui Qin; Ben Zhong Tang
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Publication Detail:
Type:  Journal Article     Date:  2008-12-23
Journal Detail:
Title:  Macromolecular rapid communications     Volume:  30     ISSN:  1022-1336     ISO Abbreviation:  Macromol Rapid Commun     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2011-06-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9888239     Medline TA:  Macromol Rapid Commun     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  170-5     Citation Subset:  -    
Copyright Information:
Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Department of Chemistry, Wuhan University, Wuhan 430072, China.
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