Which of the following are used as blood substitutes?

Which of the following are used as blood substitutes? Correct Answer Hemoglobin based oxygen carriers, Perfluorocarbon emulsions

Perfluorocarbons are kind of hydrocarbons in which the hydrogen has been replaced by fluorine which makes them chemically inert. Then various substances like water, salts and phospholipid surfactants are added and emulsified. These emulsions carry oxygen by trapping oxygen in their pores. Heamoglobin based oxygen carriers are vesicle like substances which can mimic the oxygen carrying properties of the haemoglobin so that the need for human haemoglobin can go down.

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