Liposomal phospholipid bilayer

The liposomal phospholipid bilayer is a structural assembly composed primarily of amphiphilic phospholipids arranged in a double-layered (bilayer) configuration, forming the outer shell of liposomes. Each bilayer consists of hydrophilic phosphate head groups facing outward toward aqueous environments and hydrophobic fatty acid tails oriented inward, away from water, creating a hydrophobic core. This structure enables liposomes to encapsulate hydrophilic or hydrophobic drugs, protect them from degradation, and deliver them to target tissues. The bilayer can be composed of natural or synthetic phospholipids, often stabilized by cholesterol or other sterols, and features physical properties (fluidity, permeability) dictated by the lipid composition. The principal function of the liposomal bilayer is as a vehicle or carrier for therapeutic agents rather than acting as a direct pharmacological target, receptor, enzyme, or transporter. As such, the bilayer itself is not generally considered a conventional therapeutic "target" but rather a delivery platform[3][4][5][8]. Notes on correctness: - "Liposomal phospholipid bilayer" refers to a structure, not a molecular target or receptor; it does not itself mediate biological effects as a target, but provides a vehicle for drug delivery[4][5][8]. - For structured drug-target data extraction, this entry is incorrect as a therapeutic target; it should be classified as a formulation vehicle or delivery system, not a receptor, enzyme, transporter, or other typical drug target.

Other names

Liposome bilayerLiposome lipid bilayerPhospholipid liposome bilayerLiposome membrane

Acts as a vehicle for drug delivery by encapsulating therapeutic agents and facilitating their entry into cells via fusion, endocytosis, or phagocytosis[2][4][5]