Vascularized Stem Cell Sheet (IMAGE) Michigan Technological University Caption The fluorescent green tubes are the beginnings of veins, capillaries and lymphatic drainages -- engineering pre-vascularized tissue like this could help heal severe burn injuries. Credit Michigan Tech, Feng Zhao Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.