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Erythromer
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ErythroMer is a red blood cell substitute in development funded by the National Institutes of Health and U.S. Department of Defense.[1] Similar to other hemoglobin-based oxygen carriers, the product is stable for several months even when freeze-dried. It can be reconstituted from this lyophilized state in emergencies. This opens up the possibility of eventual stockpiling of ErythroMer, making it easier to supply blood in large amounts to those who need it.[2]
 | This article needs to be updated. (April 2025) |
The development of this technology was done at Washington University in St. Louis and University of Illinois Urbana-Champaign.[when?][3] Trials have been successful in rats, mice, and rabbits, and human trials are planned.[4]
ErythroMer is a reddish blood powder composed of hemoglobin from humans. By coating it with a synthetic polymer, it can sense pH changes, allowing for oxygen pick up in areas where the pH levels are high and disposal where they are low.[2]
In the spring of 2024, ErythroMer showed promise in pre-clinical testing. In animal testing, it effectively delivered oxygen and helped revive animals with significant blood loss. Researchers are hopeful that ErythroMer can soon move to human trials, potentially revolutionizing blood transfusions.[5]
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