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Proceedings Paper

Inactivation of encephalomyocarditis virus and salmonella typhimurium by using a visible femtosecond laser
Author(s): Shaw-Wei D. Tsen; K. T. Tsen
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Paper Abstract

We report inactivation of encephalomyocarditis virus and salmonella typhimurium by a visible femtosecond laser. Our results show that inactivation of virus and bacterium by an ultrashort pulsed laser light might involve completely different mechanisms. Inactivation of viruses by an ultrashort pulsed laser might involve disruption of their protein coat through laser-induced excitation of large-amplitude acoustic vibrations. On the other hand, inactivation of bacteria is most likely related to the disruption of their metabolism by the DNA relaxation process caused by irradiation of ultrashort pulsed lasers.

Paper Details

Date Published: 16 February 2011
PDF: 7 pages
Proc. SPIE 7895, Optical Biopsy IX, 78950S (16 February 2011); doi: 10.1117/12.874952
Show Author Affiliations
Shaw-Wei D. Tsen, Washington Univ. School of Medicine (United States)
K. T. Tsen, Arizona State Univ. (United States)

Published in SPIE Proceedings Vol. 7895:
Optical Biopsy IX
Robert R. Alfano, Editor(s)

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