[Artificial blood: the future of blood transfusion? II. Blood substitutes other than hemoglobin solutions]

Part 2 discusses the state-of-the-art in oxygen-transporting blood substitutes other than hemoglobin solutions (Part 1); these are the fluorocarbon emulsions, the hemoglobin liposomes and other products such as oxygen-chelating agents. The substitutes reviewed here may play an important future role; before then, their stability, ease of administration, innocuity and value in human clinical medicine must be ensured.