Those amazing lasers

["Dude VanWinkle" <dudevanwinkle () gmail com>]

from: http://tinyurl.com/yedecq (newscientist)

Good news for sports stars with torn tendons. Research carried out by
the US Department of Defense (DoD) shows that laser light can help
heal such injuries. It could provide an alternative to glues, sutures
or staples, which can all cause disfigurement and infection. And it
might even be used to repair damaged eyes, its inventors claim.

DoD experts found that rose Bengal sodium, a dye commonly used to
stain biological samples, absorbs light with a wavelength of 550
nanometres. In addition, instead of simply getting hotter as light is
absorbed, the dye releases oxygen and catalyses the cross-linking of
nearby amino acids.

So, if the dye is painted onto the sides of a torn tendon, and
illuminated while the tear is held closed, collagen will bind it
together and give natural healing a kick start. A lengthy patent
application details numerous successful experiments carried out by the
DoD's Medical Free Electron Laser Program.

--------------------

read the patent application here: http://qurl.com/gffqd

-JP
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