Chronic wounds are deep and difficult to repair. Often, the top of the injury heals before the bottom, so the wound collapses in on itself. Over time, this can result in scar tissue and reduced skin function … The technique is the first of its kind to simulate three layers of skin: the hypodermis, or fatty layer, the dermis, and the epidermis … “You effectively have three different cell types. They all grow at different speeds,” said author Alan Smith. “If you try to produce tri-layered structures … read more