Just in time for Halloween, researchers from the historically Transylvanian city of Romania, called Cluj-Napoca, announced the first-ever artificial blood that could be used without fearing life-threatening side effects of prior models. The new artificial blood relies not on hemoglobin, like typical artificial bloods, but hemerythrin — a protein extracted from sea worms that is then mixed with water and salts. Doctors can use the artificial blood to reduce infection rates during blood donation, and to supply lost stores in patients for several hours or even up to a day, researcher Dr. Radu Silaghi-Dumitrescu says.
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