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light-activated

Researchers have developed a technique for activating biological signals through the skin of a living animal using light. In this illustration, ultraviolet light is shining through a pattern, initiating fluorescence in the biomaterial implanted in a biomaterial located under the skin of a living animal. (Credit: García Laboratory at Georgia Tech)
Molecular “hats” allow in vivo activation of disguised signaling peptides

Using molecular "hats," researchers have developed a way to sneak biomaterials containing the signaling molecules into living animals.