Water soluble Ln(III)-based metallopolymer with AIE-active and ACQ-effect lanthanide behaviors for detection of nanomolar pyrophosphate

Zhao Zhang*, Hui Chang, Yifan Kang, Xinping Li, Huie Jiang, Bailiang Xue, Yaoyu Wang, Xingqiang Lü, Xunjin ZHU

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

In this study, a polymerizable terpyridine 2-(4-(4-(4-vinylbenzyloxy)phenyl)-6-(pyridin-2-yl)pyridin-2-yl)pyridine was synthesized, with N-(2-hydroxyethyl)acrylamide (HEAA) used to obtain an amphipathic polymer (Poly) through free radical polymerization. Then, Poly was coordinated with LnCl3 or Ln(ABM)3(H2O)2 (ABM = 4,4,4-trifluoro-1-phenylbutane-1,3-dione; Ln = Eu or Gd) in an equimolar ratio and a series of terpyridine-based Ln(III)-metallopolymer Poly-Eu or Poly-Eu-ABM obtained. The results strongly suggested that Poly-Eu exhibited aggregation-induced lanthanide emission. In contrast, after the introduction of a secondary sensitizer, ABM to Poly-Eu, aggregation-caused quenching effects were observed in Poly-Eu-ABM. In addition, both Poly-Eu and Poly-Eu-ABM were applied as fluorescence sensors to selectively detect pyrophosphate (PPi) among a series of different anions and the detection limit found to be at the nanomolar scale. Furthermore, high PPi sensitivity and selectively, low toxicity, and water solubility of this metallopolymer matrix Poly-Eu-ABM were used to detect PPi in living cells.

Original languageEnglish
Pages (from-to)999-1007
Number of pages9
JournalSensors and Actuators, B: Chemical
Volume282
DOIs
Publication statusPublished - 1 Mar 2019

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

User-Defined Keywords

  • AIE-active lanthanide behaviors
  • Eu(III)-based metallopolymer
  • Nanomolar scale
  • PPi Probes
  • Water-soluble

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