Search results
Results from the WOW.Com Content Network
Liposomes can be made in a particular size range that makes them viable targets for natural macrophage phagocytosis. These liposomes may be digested while in the macrophage's phagosome, thus releasing its drug. Liposomes can also be decorated with opsonins and ligands to activate endocytosis in other cell types.
Unilamellar liposomes are used to study biological systems and to mimic cell membranes, and are classified into three groups based on their size: small unilamellar liposomes/vesicles (SUVs) that with a size range of 20–100 nm, large unilamellar liposomes/vesicles (LUVs) with a size range of 100–1000 nm and giant unilamellar liposomes ...
Addition of small hydrophilic molecules like sucrose into mixed lipid lamellar liposomes made from galactolipid-rich thylakoid membranes destabilises bilayers into the micellar phase. [84] is a measure of how much energy it takes to expose a bilayer edge to water by tearing the bilayer or creating a hole in it. The origin of this energy is the ...
Liposomes are ("hollow") lipid nanoparticles which have a phospholipid bilayer as coat, because the bulk of the interior of the particle is composed of aqueous substance. In various popular uses, the optional payload is e.g. DNA vaccines , Gene therapy , vitamins , antibiotics , cosmetics and many others.
In cell biology, a vesicle is a structure within or outside a cell, consisting of liquid or cytoplasm enclosed by a lipid bilayer. Vesicles form naturally during the processes of secretion ( exocytosis ), uptake ( endocytosis ), and the transport of materials within the plasma membrane .
The hydrophobic ends of phospholipid molecules are constrained [clarification needed], often to each other, creating spherical liposomes that are smaller when the hydrophobic ends are exposed to a solution that is aqueous in nature. The preparation of liposomes results in the formation of the liposome extruder [clarification needed]. A liposome ...
Cationic liposomes are spherical structures that contain positively charged lipids. Cationic liposomes can vary in size between 40 nm and 500 nm, and they can either have one lipid bilayer (monolamellar) or multiple lipid bilayers (multilamellar). [ 1 ]
In multilamellar liposomes, many such lipid bilayer sheets are layered concentrically with water layers in between. Figure 1 Multi-lamellar phase of aqueous lipid dispersions, each white lamella represents a lipid bilayer organization in liposome made by vortex-mixing of dried total lipid extract of spinach thylakoid membranes with distilled water.