To Heal Skin, Scientists Invent Living Bioelectronics.

To Heal Skin, Scientists Invent Living Bioelectronics.

For much of his childhood, Simiao Niu was troubled by psoriasis, a chronic, often painful skin condition, mostly on his arms. Sometimes, the prescribed ointment worked and treated the inflamed, red areas produced by the disease. But he was never sure if he was using...