Neoseeker : News : Scientists zap viruses in human blood with lasers

Scientists zap viruses in human blood with lasers
Kevin Spiess - Wednesday, September 5th, 2007 | 12:49PM (PT) 0 Favourites (0)


CD's, anti-missile protection shields, pointers -- is there anything lasers can't do?

Scientists zap viruses in human blood with lasers Image 1

A father and son research team came up with a novel new use of lasers: using them to knock the socks off of viruses in human blood. While the laser method could not really work in curing someone of a virus, the process does hold promise in sterilizing blood used for transfusions. 

Our laser repeatedly sends a rapid pulse of light and then relaxes, allowing the solution surrounding the virus to cool off,” Shaw-Wei David Tsen said; Tsen is the younger of the Tsens.

The low-power laser fries at frequencies that can selectively nail viruses, but leave the human cells around them unharmed. The laser doesn't destroy viruses through heat -- but through vibrations, instead.

The researchers believe that this method should work against drug-resistant viruses, and other respected pillars of the virus world: “We believe this work on bacterial viruses is promising, but the real test will be with more serious pathogens like HIV and hepatitis,” said T.C Wu, a laboratory researcher.

Source: Science Daily

Section: Technology

  • 0 thumbs!
    volacide since Dec 2005 | Sep 5, 07
    Damn, and I was all set and ready to unleash the Las Plagas on the world...
  • 0 thumbs!
    kspiess since Jun 2007 | Sep 5, 07
    Yup, too late dude. No virolopocalypse for you.
  • 0 thumbs!
    MicahWrites since Jul 2007 | Sep 5, 07
    Interesting, but simply try to conceive the number of HIV infected t-cells in someone who is HIV positive, The number of cells would order on the billions if not trillions. It would take months to blast them all and the rate of viral reproduction might out pace the laser inoculation system.

    Cool science though. I probably has an application in the lab, but likely never in the hospital or rest of the world.
  • 0 thumbs!
    kspiess since Jun 2007 | Sep 6, 07
    Actually, "The amount of infectious virus within each cube plummeted 100- to 1000-fold after the laser treatment."

    So, if you did the treatment a 10 times, you'd eradicate 99.999% (not the exact figure, obviously) of the viral agents. But yeah, its not really feasible to give someone a total body blood transfusion, so, as stated in the article, this will probably more be used for sterilizing blood transfusions in operations and such.
  • 0 thumbs!
    Necrin since Nov 2001 | Sep 6, 07
    I think they played Trauma Center too much.
  • 0 thumbs!
    tallteen86 since Feb 2003 | Sep 6, 07
    Lol, I was actually thinking there might be a process for HIV/AIDS patients, and lo and behold, that was mentioned too ;;

    I was actually thinking of carefully cycling blood out (a temporary bypass in other words), and eradicating the viruses externally...

    It would be more effective, if they could just zap the whole body a bunch of times...

    Course, I doubt you can do it all at once (a bunch of zaps in quick sequence)...you probably would need to give the body a chance to recover a bit...but over the course of a day or week, it could help...

    Course, late stage AIDS patients are pretty much a lost cause, since their bodies pretty much are no longer capable of fighting off any sort of infection...
  • 0 thumbs!
    PokeSplicer since Jul 2007 | Sep 6, 07
    Again, I represent the stupid population:
    Z0MG T3Y AM SH00P1NG T3H WH00P 1N 0UR BL0D!
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