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Acid- and Oxidatively-Labile Vinyl Ether Surfactants: Synthesis and Drug Delivery Applications
Abstract:Liposomes have now evolved into a commercially-important drug delivery vehicle by overcoming a host of problems that were initially encountered with first generation liposomes. In spite of these impressive advances, the great potential of liposomes as drug delivery vehicles will not be fully realized until more effective targeting and membrane fusion mechanisms have been incorporated into their formulations. Our laboratory has developed several plasmenyl-type lipids for use in acid- or photooxidatively-triggerable liposomes. This review summarizes our progress toward the design, synthesis, and triggered release of encapsulated agents upon acid-catalyzed hydrolysis or photosensitized oxidation of plasmenyl-type lipid systems. Application of these materials in cascade triggering and intracellular drug delivery schemes is also described.
Keywords:Vinyl ether surfactants  Vesicles  Drug delivery  Liposomes  Cascade triggering  Cleavable surfactants
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