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Proceedings Paper

Photobleaching of Photogem: a spectroscopic study in solution
Author(s): Juliana Ferreira; Lilian Tan Moriyama; Cristina Kurachi; Orlando de Castro e Silva; Claudio Sibata; Vanderlei Salvador Bagnato
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Paper Abstract

We have performed an experiment to investigate the degradation of the photosensitizer Photogem in solution. The investigation was carried out at 630 nm diode laser for different intensities. The light degradation considered was from light that could cause modification of the solution fluorescence spectra under excitation of 535 nm. Knowing the degradation rate as a function of intensity, one can infer the rate of degradation during PDT application and its process efficiency loss.

Paper Details

Date Published: 8 April 2005
PDF: 8 pages
Proc. SPIE 5689, Optical Methods for Tumor Treatment and Detection: Mechanisms and Techniques in Photodynamic Therapy XIV, (8 April 2005); doi: 10.1117/12.588254
Show Author Affiliations
Juliana Ferreira, Instituto de Fisica de Sao Carlos, Univ. de Sao Paulo (Brazil)
Faculdade de Medicina de Ribeirao Preto/Univ. de Sao Paulo (Brazil)
Lilian Tan Moriyama, Instituto de Fisica de Sao Carlos, Univ. de Sao Paulo (Brazil)
Cristina Kurachi, Instituto de Fisica de Sao Carlos, Univ. de Sao Paulo (Brazil)
Orlando de Castro e Silva, Faculdade de Medicina de Ribeirao Preto/Univ. de Sao Paulo (Brazil)
Claudio Sibata, Brody School of Medicine/East Carolina Univ. (United States)
Vanderlei Salvador Bagnato, Instituto de Fisica de Sao Carlos, Univ. de Sao Paulo (Brazil)


Published in SPIE Proceedings Vol. 5689:
Optical Methods for Tumor Treatment and Detection: Mechanisms and Techniques in Photodynamic Therapy XIV
David Kessel, Editor(s)

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