Handheld 3D Skin Printer Accelerates Healing of Burns

A handheld 3D skin printer was developed that covers wounds with a uniform sheet of biomaterial, stripe by stripe. The bio ink dispensed by the roller is composed of mesenchymal stroma cells (MSCs) — stem cells that differentiate into specialized cell types depending on their environment. In this case, the MSC material promotes skin regeneration and reduces scarring. The device forms tissue in situ, depositing and setting in place in two minutes or less.