Researchers from Megakaryon of Japan are using stem cells to derive platelet cells, which are regularly in short supply due to a lack of blood donations. Platelet cells assist in clotting and help stop bleeding in surgery and trauma patients. However, because these cells are derived from blood, not only does a shortage exist, but their shelf-life is a mere 4 days, as they cannot be frozen and stored. The protocol involves the expanding and differentiating stem cells into platelet cells. These manufactured cells have a shelf-life of up to 2 weeks and can be administered to patients in need. The new method has the potential to eliminate the need for blood donations.