A turn-on fluorescent sensor for the detection of putrescine in fish samples using thiazole derivative

Lavanya Raja, Srinivasadesikan Venkatesan, Lin Ming-chang, Padmini Vediappen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A simple optical method is suggested for the quantitative detection of putrescine using a thiazole derivative (4CTP). The protocol is based on the formation of a complex between putrescine and the 4CTP with ratio 1:2. Synthesized organic compound (4CTP) shows high selective detection of putrescine in various fish samples through the photophysical properties using UV and fluorescence spectroscopy. At the optimal condition, good linearity has been achieved at putrescine concentrations ranging from 5 to 30 μM with low detection limit (LOD) of 68 nM. The binding mechanism is ICT and electronic properties were studied using density functional theory (DFT).

Original languageEnglish
Article number114546
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume438
DOIs
StatePublished - 1 Apr 2023

Keywords

  • Detection limit
  • Photophysical properties
  • Putrescine
  • Thiazole derivative

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