Selective detection of homocysteine by using poly methyl vinyl ether-alt-maleic silver clusters

  • Taiqun Yang
  • , Shan Dai
  • , Cuifang Qin
  • , Kehan Huang
  • , Yuting Chen
  • , Haifeng Pan
  • , Sanjun Zhang*
  • , Kun Zhang
  • , Jianhua Xu
  • *Corresponding author for this work

Research output: Contribution to journalComment/debate

1 Scopus citations

Abstract

We report selective detection of homocysteine (Hcy) through luminescent poly methyl vinyl ether-alt-maleic acid (PMVEM) silver nanoclusters (Ag NCs), which were synthesized using PMVEM as scaffold. The as-developed PMVEM-Ag NCs have two emission peaks at 460 and 540 nm. After Hcy was added, the thiol moiety of Hcy can efficiently coordinate on Ag NCs, resulting in luminescence quenching of the 460 and 540 nm peaks. However, the ratio of these two emission peak was linearly correlated with the Hcy concentration from 5 to 100 μmol/L. The detection limits was 1 μmol/L. The detection of Hcy used the ratio of the two emission peaks, which permit selective detection of Hcy and quantitive determination of Hcy levels.

Original languageEnglish
Pages (from-to)867-871
Number of pages5
JournalChinese Journal of Organic Chemistry
Volume36
Issue number4
DOIs
StatePublished - 1 Apr 2016

Keywords

  • Fluorescent sensor
  • Homocysteine
  • Poly methyl vinyl ether-alt-maleic acid
  • Silver nanoclusters

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