Effects of Fluorosurfactant Structure and Concentration on Drug Availability and Biocompatibility in Water-in-Perfluorocarbon Emulsions for Pulmonary Drug Delivery.

The efficacy of inhaled antibiotics is often impaired by insufficient drug penetration into plugged and poorly ventilated airways. Liquid ventilation with perfluorocarbon (PFC) containing emulsified aqueous antibiotics, or antibacterial perfluorocarbon ventilation, could potentially improve treatment of respiratory infections when used as an adjunct therapy to inhaled antibiotics. The molecular structure and concentration of the fluorosurfactant used to stabilize such water-in-PFC emulsions will have significant effects on the efficacy and safety of the resulting treatment.

In vitro evaluation of lysophosphatidic acid delivery via reverse perfluorocarbon emulsions to enhance alveolar epithelial repair.

Background: Alveolar drug delivery is needed to enhance alveolar repair during acute respiratory distress syndrome. However, delivery of inhaled drugs is poor in this setting. Drug delivery via liquid perfluorocarbon emulsions could address this problem through better alveolar penetration and improved spatial distribution.