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Proceedings Paper

Hyperspectral two-photon near-infrared cancer imaging at depth
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Paper Abstract

We present a novel way of optical detection of malignant cancer cell colonies by using multi-wavelength two-photon excited fluorescence from an environmentally sensitive Styryl-9M dye. We show that the two-photon excited fluorescence from colonies embedded in a tissue phantom depends on the type of cells as well as on the composition of the phantoms. We use the ratio between the fluorescence intensities excited at 1100 and 1200 nm to distinguish between samples containing no cell colonies, samples with colonies of normal cells and samples with cancer cells. The proposed method is a promising tool for non-invasive deep tissue photodetection diagnostics and for precise localization of malignant cells.

Paper Details

Date Published: 13 July 2009
PDF: 9 pages
Proc. SPIE 7380, Photodynamic Therapy: Back to the Future, 738048 (13 July 2009); doi: 10.1117/12.822903
Show Author Affiliations
Nikolay S. Makarov, Montana State Univ., Bozeman (United States)
Jean Starkey, Montana State Univ., Bozeman (United States)
Mikhail Drobizhev, Montana State Univ., Bozeman (United States)
Aleksander Rebane, Montana State Univ., Bozeman (United States)
National Institute of Chemical Physics and Biophysics (Estonia)


Published in SPIE Proceedings Vol. 7380:
Photodynamic Therapy: Back to the Future
David H. Kessel, Editor(s)

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