Inactivation of viruses by coherent excitations with a low power visible femtosecond laser
2007

Using a Femtosecond Laser to Inactivate Viruses

Sample size: 4 publication Evidence: high

Author Information

Author(s): Tsen KT, Tsen Shaw-Wei D, Chang Chih-Long, Hung Chien-Fu, Wu T-C, Kiang Juliann G

Primary Institution: Arizona State University

Hypothesis

Can a low power visible femtosecond laser effectively inactivate viruses such as bacteriophage M13?

Conclusion

The study demonstrates that a very low power visible femtosecond laser can selectively inactivate viruses without harming sensitive materials.

Supporting Evidence

  • The M13 bacteriophage samples were inactivated when exposed to a laser power density of 50 MW/cm2.
  • Plaque counts showed a significant reduction in viable M13 phages after laser treatment.
  • The study suggests that this method could be applicable to drug-resistant strains of microorganisms.

Takeaway

Scientists found that shining a special kind of laser on viruses can make them go away, like magic! This could help us fight germs without making medicine less effective.

Methodology

The study used a visible femtosecond laser to irradiate M13 bacteriophage samples and measured inactivation through plaque counts.

Limitations

The study primarily focused on M13 bacteriophages and may not be generalizable to all viruses.

Statistical Information

P-Value

<0.0001

Statistical Significance

p<0.0001

Digital Object Identifier (DOI)

10.1186/1743-422X-4-50

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