The polymer-based material changes color based on the force of impact.

Red means stop. That may soon be the case when detecting traumatic brain injuries, thanks to an innovative material that changes color based on force of impact.

The polymer-based material, created by a team of researchers from the University of Pennsylvania, may be an important development in the detection of traumatic brain injuries sustained duringathletic events and other scenarios, including combat. The team presented their findings at the 250th National Meeting & Exposition of the American Chemical Society in Boston.

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