amigoro writes: "Lasers can be used to zap viruses in blood, making the process of disinfecting blood for transfusions more efficient, a father-son team reported in the Journal of Physics: Condensed Matter. The researchers aimed a low-power 425 nm wavelenghth visible laser with a pulse lasting 100 femtoseconds (10-13 second) into glass tubes containing saline-diluted viruses that infect bacteria, also known as bacteriophages and the amount of infectious virus within each cube plummeted 100- to 1000-fold after the laser treatment."
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