Journal ArticleDOI
A New Disubstituted Polyacetylene for the Detection of α-Amino Acids.
Qi Zeng,Cathy Ka Wai Jim,Jacky Wing Yip Lam,Yongqiang Dong,Zhen Li,Jingui Qin,Ben Zhong Tang +6 more
TLDR
New imidazole-functionalized disubstituted polyacetylene was synthesized by utilizing the postfunctional strategy and its ability to sense copper ions and α-amino acids by fluorescence quenching has been studied.Abstract:
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) .read more
Citations
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Recent progress on polymer-based fluorescent and colorimetric chemosensors
TL;DR: This tutorial review will cover polymer-based optical chemosensors from 2007 to 2010.
Journal ArticleDOI
Polymerization of substituted acetylenes and features of the formed polymers
TL;DR: In this paper, the development of rhodium catalysts for the polymerization of phenylacetylenes, the helical structures of the polymers obtained from chiral monosubstituted acetylenes and highly gas-permeable polymers prepared from disubstitized acyclic polymers have been discussed.
Journal ArticleDOI
Chemical sensing of neurotransmitters
Tuhin Pradhan,Tuhin Pradhan,Hyo Sung Jung,Joo Hee Jang,Tae Woo Kim,Chulhun Kang,Jong Seung Kim +6 more
TL;DR: This current review focuses on various neurotransmitter detection based on fluorescent or colorimetric spectrophotometry published for the last 12 years, covering biogenic amines, amino acids, and adenosine.
Journal ArticleDOI
Rapid and ratiometric fluorescent detection of cysteine with high selectivity and sensitivity by a simple and readily available probe
TL;DR: This probe uses a visible-light excitable excited-state intramolecular proton transfer (ESIPT) dye as the fluorophore and an acrylate group as the ESIPT blocking agent as well as the recognition unit to show a rapid, ratiometric fluorescent detection process for Cys with high selectivity over various analytes.
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Gold nanoparticle based optical and electrochemical sensing of dopamine
TL;DR: In this paper, the authors give an overview on the progress that has been made in the past few years on the use of gold nanoparticles for use in sensors and analytical tools for the determination of dopamine (DA).
References
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