Experimental "smart" bandage speeds healing by zapping chronic wounds

Created by scientists at Stanford University, the prototype device is made up of two layers. On top is a polymer film just 100 microns thick, upon which the electronic components are mounted. On the underside of that film is the other layer, a "rubbery, skin-like" hydrogel which lies in contact with the wound.

Experimental "smart" bandage speeds healing by zapping chronic wounds (ampproject.org)