Japanese scientists develop artificial blood that stores without refrigeration
Because this artificial blood lacks the specific markers that typically determine compatibility (like A, B, AB, or O types), it can be safely transfused into any patient without cross-matching.The artificial blood is also virus-free and has a much longer shelf life than donated human blood.While traditional blood must be used within a few weeks and kept under refrigeration, this synthetic alternative can be stored for several years at room temperature, making it especially useful in remote areas, disaster zones, and for military use.HOW IT WORKS AND WHY IT MATTERSProfessor Hiromi Sakai at Nara Medical University in Japan has pioneered the project. The researchers developed the product by extracting haemoglobin, the oxygen-carrying component of red blood cells, from expired donor blood.They then encapsulate it in tiny fat-based bubbles that mimic natural red blood cells, allowing the haemoglobin to circulate safely through the body without triggering an immune response."When a blood transfusion is urgently needed, it takes some time before starting the transfusion because the patient's blood type needs to be examined," said Hiromi Sakai told The Japan Times. "With the artificial red blood cells, there is no need to worry about blood types, so the transfusion procedure can be performed quickly."Since the process removes cells and other immune-stimulating parts, the risk of transmitting infections or causing reactions is nearly eliminated.The technology is still in clinical trial stages, but early results are promising.This new artificial blood doesn't need to be matched to a person's blood type and can be stored for a long time, up to two years at room temperature and five years in a fridge.In comparison, real donated blood lasts only about 42 days.Early human trials, which started in 2022, showed that healthy volunteers were able to receive the artificial blood safely, with no serious side effects. The trial is now testing larger doses (100 to 400 millilitres) to check how well it works and how safe it is, according to a Tokyo Weekender report.advertisementIf these tests continue to show good results, this artificial blood could be used in hospitals and emergency care by around 2030, especially in places where regular blood is hard to store or find.If successful, Japan's artificial blood may not only ease the burden on blood banks, but also ensure that lifesaving transfusions are available more quickly and safely, regardless of blood type or infrastructure.- Ends
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