One goal of the Armed Forces Institute of Regenerative Medicine is a way to quickly seal battlefield wounds and promote more rapid healing. One method already being tested is a skin spray gun; it sprays skin stem cells onto a wound. The technique also utilizes an innovative wound dressing that acts as a bioreactor, nurturing the sprayed-on cells. The method, which uses the patient's own cells, has already been successfully tested on 16 burn patients at the Berlin Burn Center, providing faster and more efficient healing than typical skin grafts. The patient's own pigment cells were included in the mix, so the new skin appeared natural.