Two different mechanisms of low-intensity laser photobiological effects on Escherichia coli.

@article{Karu1994TwoDM,
  title={Two different mechanisms of low-intensity laser photobiological effects on Escherichia coli.},
  author={Tiina I. Karu and Olgo A. Tiphlova and Rinat O. Esenaliev and Vladilen Stepanovich Letokhov},
  journal={Journal of photochemistry and photobiology. B, Biology},
  year={1994},
  volume={24 3},
  pages={
          155-61
        }
}
Bacterial suspensions in a phosphate buffer were irradiated at wavelengths lambda of 632.8, 1066 and 1286 nm, incubated in Hottinguer broth for 60 min and assayed for viability by the standard surface-plating technique. The difference between the number of viable cells in the irradiated culture and the control was termed growth stimulation. Irradiation of the bacteria with an He-Ne laser (632.8 nm) or semiconductor lasers at 1066 and 1286 nm at various intensities and irradiation times produced… CONTINUE READING
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