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Proceedings Paper

Light-induced autofluorescence of animal skin used in tissue optical modeling
Author(s): E. Borisova; I. Bliznakova; P. Troyanova M.D.; L. Avramov
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Paper Abstract

Light-induced autofluorescence spectroscopy provides many possibilities for medical diagnostics needs for differentiation of tissue pathologies including cancer. For the needs of clinical practice scientists collect spectral data from patients in vivo or they study different tumor models to obtain objective information for fluorescent properties of every kind of normal and diseased tissue. Therefore it is very important to find the most appropriate and close to the human skin samples from the point of view of laser-induced fluorescence spectroscopy, which will give the possibility for easier transfer of data obtained in animal models to spectroscopic medical diagnostics in humans. In this study are presented some results for in vitro detection of the autofluorescence signals of the animal skin (pig and chicken) with using of LEDs as excitation sources (maximum emission at 365, 375, 385 and 400 nm). The autofluorescence signals from in vivo human skin were also detected for comparison with the models' results. Specific features of the spectra measured are discussed and there are proposed some of the origins of the fluorescence signals obtained. Fluorescence maxima detected are addressed to the typical fluorophores existing in the cutaneous tissues. Influence of main skin absorbers, namely melanin and hemoglobin, is also discussed.

Paper Details

Date Published: 11 July 2007
PDF: 7 pages
Proc. SPIE 6628, Diagnostic Optical Spectroscopy in Biomedicine IV, 66281J (11 July 2007); doi: 10.1117/12.728391
Show Author Affiliations
E. Borisova, Institute of Electronics (Bulgaria)
I. Bliznakova, Institute of Electronics (Bulgaria)
P. Troyanova M.D., National Oncological Ctr. (Bulgaria)
L. Avramov, Institute of Electronics (Bulgaria)

Published in SPIE Proceedings Vol. 6628:
Diagnostic Optical Spectroscopy in Biomedicine IV
Dietrich Schweitzer; Maryann Fitzmaurice, Editor(s)

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