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Proceedings Paper

Optical properties of a photosensitizer entrapped in sol gel glass
Author(s): Agnieszka Ulatowska-Jarza; K. Maruszewski; Halina Podbielska M.D.; Wieslaw Strek
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Paper Abstract

The optical and physico-chemical properties of the photosensitive dye - thiocarbocyanine in water solution as well as entrapped into the sol-gel matrices are examined. The absorption is measured for different pH of solutions. The changes caused by addition of ethanol and triton, are also investigated. It was observed that the photostability of the dye, in both water solution and sol-gel, depends strongly on pH and temperature. The higher photostability is observed for higher pH. It is shown that for thiocarbocyanine immobilized in sol-gel matrix, the photodegradation is slower than in the case of water and alcohol solutions.

Paper Details

Date Published: 13 January 1998
PDF: 6 pages
Proc. SPIE 3196, Optical and Imaging Techniques for Biomonitoring III, (13 January 1998);
Show Author Affiliations
Agnieszka Ulatowska-Jarza, Technical Univ. of Wroclaw (Poland)
K. Maruszewski, Institute of Low Temperature and Structure Research (Poland)
Halina Podbielska M.D., Technical Univ. of Wroclaw (Poland)
Wieslaw Strek, Institute of Low Temperature and Structure Research (Poland)

Published in SPIE Proceedings Vol. 3196:
Optical and Imaging Techniques for Biomonitoring III
Hans-Jochen Foth; Renato Marchesini; Halina Podbielska M.D.; Abraham Katzir, Editor(s)

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