Stone Cold
Superstar
Researchers have known for a long time that eumelanin—the pigment that colors human skin, hair, and eyes—can conduct electricity. But eumelanin in its natural form isn’t conductive enough to be very useful, and nobody could figure out how to give it a boost. This week, that changed. In a paper published this week in the journal Frontiers in Chemistry, an interdisciplinary team of Italian scientists describe a breakthrough process that dramatically enhances eumelanin’s conductivity.