Highly sensitive and reusable mercury (II) sensor based on fluorescence quenching of pyrene moiety in polyacrylamide-based cryogel

Sahin Z. M., Alimli D., Tonta M. M., Kose M. E., YILMAZ F.

SENSORS AND ACTUATORS B-CHEMICAL, vol.242, pp.362-368, 2017 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 242
  • Publication Date: 2017
  • Doi Number: 10.1016/j.snb.2016.11.048
  • Journal Name: SENSORS AND ACTUATORS B-CHEMICAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.362-368
  • Keywords: Pyrene moiety, Cryogel, Fluorescent sensor, Mercury ion, Reusability, AQUEOUS-SOLUTIONS, HG2+ DETECTION, WATER, ION, NANOPARTICLES, CHROMATOGRAPHY, AFFINITY, CELLS
  • Kocaeli University Affiliated: No

Abstract

A practically reusable fluorescent ion-sensing cryogel (PAAm-Pyr) was prepared through the post functionalization of macroporous polyacrylamide-based cryogel with pyrene moiety. PAAm-Pyr can sense very low concentration of Hg2+(2 ppb) in aqueous solutions and demonstrates a high selectivity for Hg2* in the presence of various competing metal ions in pure water. Developed sensor can be used many times after simple washing in pure water. (C) 2016 Elsevier B.V. All rights reserved.