Photocured thiol-ene based optical fluorescence sensor for determination of gold(III)

Soner Cubuk; Memet Vezir Kahraman; Ece Kök Yetimoğlu; Sibel Kenan

doi:10.1016/j.aca.2014.01.013

Photocured thiol-ene based optical fluorescence sensor for determination of gold(III)

Anal Chim Acta. 2014 Feb 17:812:215-21. doi: 10.1016/j.aca.2014.01.013. Epub 2014 Jan 13.

Authors

Soner Cubuk¹, Memet Vezir Kahraman², Ece Kök Yetimoğlu², Sibel Kenan²

Affiliations

¹ Faculty of Art and Sci., Chemistry Dept., Marmara University, 34722, İstanbul, Turkey. Electronic address: sonercubuk@marmara.edu.tr.
² Faculty of Art and Sci., Chemistry Dept., Marmara University, 34722, İstanbul, Turkey.

PMID: 24491784
DOI: 10.1016/j.aca.2014.01.013

Abstract

This study describes the preparation and the characterization of a new thiol-ene based polymeric fluorescence sensor by photo initiated polymerization of trimethylolpropane tris(3-mercaptopropionate), 2-hydroxyethylacrylate, and 2,4,6-triallyloxy-1,3,5-triazine which are used as monomers and also a photo initiator (2,2-dimethoxy-2-phenylacetophenone) for its usage as optical sensor for gold ions. The thiol-ene based polymeric membrane sensor was characterized by using attenuated total reflectance-fourier transform infrared spectroscopy (ATR-FTIR) and scanning electron microscopy (SEM). The response characteristics of the sensors including dynamic range, pH effect, response time, and the effect of foreign ions were investigated. Fluorescence spectra showed that the excitation/emission maxima of the membrane were at 379/425 nm, respectively.

Keywords: Fluorescence spectroscopy; Gold(III); Membrane; Optical sensor; Photo curing; Thiol-ene.