Inactivation of encephalomyocarditis virus and salmonella typhimurium by using a visible femtosecond laser

Shaw-Wei D. Tsen; K. T. Tsen

doi:10.1117/12.874952

16 February 2011 Inactivation of encephalomyocarditis virus and salmonella typhimurium by using a visible femtosecond laser

Shaw-Wei D. Tsen, K. T. Tsen

Author Affiliations +

Proceedings Volume 7895, Optical Biopsy IX; 78950S (2011) https://doi.org/10.1117/12.874952
Event: SPIE BiOS, 2011, San Francisco, California, United States

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.

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Shaw-Wei D. Tsen and K. T. Tsen "Inactivation of encephalomyocarditis virus and salmonella typhimurium by using a visible femtosecond laser", Proc. SPIE 7895, Optical Biopsy IX, 78950S (16 February 2011); https://doi.org/10.1117/12.874952

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