Fe3O4/Au nanoparticles/lignin modified microspheres as effectual surface enhanced Raman scattering (SERS) substrates for highly selective and sensitive detection of 2,4,6-trinitrotoluene (TNT)

Khaled A. Mahmoud, Mohammed Zourob

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

A new lignin modified hybrid microsphere, comprising poly(styrene-co- acrylic acid) core and magnetite (Fe3O4)/Au nanoparticle (NP) shell, was proposed here for the selective and highly sensitive detection and removal of 2,4,6-trinitrotoluene (TNT) explosives based on surface enhanced Raman scattering (SERS) and electrochemical detection methods. The presence of lignin and the highly packed layer of Fe3O4/AuNPs as a magnetic collector and metal enhancer for SERS signals allowed for the detection of TNT below 1 pM.

Original languageEnglish
Pages (from-to)2712-2719
Number of pages8
JournalAnalyst
Volume138
Issue number9
DOIs
Publication statusPublished - 7 May 2013

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ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry

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