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The potential use of ir dyes for metal ion sensors

Rolinski, O.J. and Downie, I.R. and Holmes, A.S. and Birch, D.J.S. (1995) The potential use of ir dyes for metal ion sensors. Proceedings of SPIE the International Society for Optical Engineering, 2388 (290). pp. 290-301. ISSN 0277-786X

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Abstract

The fluorescence quenching of molecules by analytes of interest, is a widely employed phenomenon in fluorescence sensing technology. Forster type dipole-dipole energy transfer from dye molecules to transition metal ions, provides a method of monitoring the concentration of these ions with some degree of selectivity. Each metal ion has a different absorption spectrum, hence, in principle it is possible to choose different fluorophores for each metal ion. In the present work, quenching studies of the carbocyanine dye DTDCI by transition metal ions in a viscous solvent and a Nafion polymer matrices are reported. The potential for fabricating near-infrared energy transfer sensors is assessed, particularly with regard to detecting copper ions in solution.

Item type: Article
ID code: 18360
Keywords: infrared dyes, metal ion sensor, fluorescence quenching, nafion polymer, Physics, Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Electrical and Electronic Engineering, Applied Mathematics, Computer Science Applications
Subjects: Science > Physics
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 08 Apr 2010 09:48
    Last modified: 08 Jul 2014 05:01
    URI: http://strathprints.strath.ac.uk/id/eprint/18360

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