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A conjugated polymer fluorescent sensor for continuous identification of copper(II) and pyrophosphate in blood serum and synovial fluid

  • Mingming Guan
  • , Chunling Xu
  • , Jiahua Ma
  • , Ting Yang
  • , Jilin Liu
  • , Guodong Feng
  • Jilin University
  • Southwest University of Science and Technology

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A novel "on-off-on" super-sensitive conjugated polymer fluorescence sensor (PPE-DPA) was developed and it was applied to realize the continuous recognition of Cu2+ and pyrophosphate (PPi). The fluorescence intensity decreased linearly with the change of Cu2+ from 0.05 to 5.0 μmol L-1 and the limit of detection was 24 nmol L-1. The fluorescence intensity was linearly enhanced with the increase of PPi from 0.5 to 12.0 μmol L-1 and the limit of detection was 230 nmol L-1. In addition, this method was applied to detect PPi in the blood serum and synovial fluid of patients with arthritis and satisfactory results were obtained. Thus, the PPE-DPA is not only an effective tool for detecting Cu2+ and PPi in samples, but also presents a potential way to diagnose arthritis.

Original languageEnglish
Pages (from-to)625-630
Number of pages6
JournalAnalytical Sciences
Volume35
Issue number6
DOIs
StatePublished - 2019
Externally publishedYes

Keywords

  • Blood serum
  • Conjugated polymer
  • Cu
  • Fluorescence sensor
  • Pyrophosphate
  • Synovial fluid

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