Abstract
This paper discusses our research on two new generation blood substitutes. One is based on the crosslinking of hemoglobin, superoxide dismutase(SOD) and catalase (CAT) to form polyhemoglobin–SOD–CAT. This is being investigated for use in conditions with potential problems related to ischemia–reperfusion injuries as in severe hemorrhagic shock, stroke and other conditions. The second one is based on biodegradable polymeric nanocapsules containing hemoglobin and enzymes. In this form, the hemoglobin and enzymes are separated from the external environment. Furthermore, modifications of the polymeric membrane can result in increase in circulation time.
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