Potential use of IR dyes for metal ion sensors

Olaf J. Rolinski; I. R. Downie; Sheila Smith; David J. S. Birch

doi:10.1117/12.208490

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8 May 1995 Potential use of IR dyes for metal ion sensors

Olaf J. Rolinski, I. R. Downie, Sheila Smith, David J. S. Birch

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Proceedings Volume 2388, Advances in Fluorescence Sensing Technology II; (1995) https://doi.org/10.1117/12.208490
Event: Photonics West '95, 1995, San Jose, CA, United States

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.

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Olaf J. Rolinski, I. R. Downie, Sheila Smith, and David J. S. Birch "Potential use of IR dyes for metal ion sensors", Proc. SPIE 2388, Advances in Fluorescence Sensing Technology II, (8 May 1995); https://doi.org/10.1117/12.208490

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