Perfluorocarbon-based oxygen delivery agent (PFC (for perfluorocarbon, commonly used in literature))

Perfluorocarbons are fully fluorinated carbon-chain molecules renowned for their extraordinary capacity to dissolve large amounts of oxygen and other gases, far exceeding the solubility of oxygen in blood plasma or water—up to 20–40 times higher[1][4]. As artificial oxygen carriers, perfluorocarbons function via a *physical dissolution mechanism*, in which oxygen is solubilized in the liquid PFC phase and later released to tissues based on diffusion gradients, without any binding or metabolic interaction[1][2][5]. These synthetic compounds are formulated as *emulsions* for intravenous use, enabling them to supplement red blood cells in conditions of hypoxia, blood loss, or impaired oxygen delivery (e.g., trauma, cardiac surgery, cancer therapy, ischemic events)[2][4][7]. Unlike biological proteins, perfluorocarbons are chemically inert and not metabolized, being slowly excreted through the lungs[3]. Clinical applications have been hampered by formulation challenges, dosing, safety concerns, and the need for repeated or high-volume administration, but interest remains for select indications (e.g., acute oxygenation needs, imaging, or adjunctive cancer therapy)[4][6]. **Note:** "Oxygen transport/delivery enhancement via physical dissolution mechanism using perfluorocarbons" is not a classical molecular target but a *therapeutic mechanism* employing a synthetic agent class (perfluorocarbons) as a vehicle for gas transport[1][2][4][6]. Perfluorocarbons do not selectively bind, activate, or inhibit biological macromolecules.

Other names

Perfluorocarbon emulsionartificial oxygen carrierperfluorocarbon oxygen carrierPFC emulsionperfluorocarbon-based oxygen carrierartificial blood substitute

Physical dissolution of oxygen in PFC (per Henry's law) Oxygen is carried physically (not chemically bound) and released down a diffusion gradient to hypoxic tissues[1][2][3][5]