A Simple, Rapid and Low-cost 3-Aminopropyltriethoxysilane (APTES)-based Surface Plasmon Resonance Sensor for TNT Explosive Detection

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Abstract

In this study, a simple, one-step organic molecule 3-aminopropyltriethoxysilane (APTES) functionalized surface plasmon resonance (SPR) sensor was developed. APTES as an organic ligand immobilized on the SPR sensor chip was used to form the Meisenheimer complex with 2,4,6-trinitrotoluene (TNT). The results of using the APTES-based SPR sensor chip show a highly selective and sensitive (ppb level: parts per billion) detection of TNT explosive. The sensor is expected to have potential for application in the fast screening of the TNT explosive.

Original languageEnglish
Pages (from-to)1029-1032
Number of pages4
JournalAnalytical Sciences
Volume37
Issue number7
DOIs
Publication statusPublished - 2021

Keywords

  • APTES
  • Meisenheimer complex
  • SPR
  • TNT explosive

ASJC Scopus subject areas

  • Analytical Chemistry

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