“Smart bandage” changes color as wounds heal

Harvard Medical School professor Conor L. Evans has developed a transparent liquid bandage that does not need to be removed to check oxygen levels.  Its phosphors glow red when a wound isn’t getting enough oxygen, and green when it is.  The glowing effect is triggered by a light source that can be captured with a smartphone camera.  The bandage can also map oxygen supply across a wound.

Diabetics with chronic wounds, burn patients, and those with tissue transplants can immediately benefit from the technology.


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