Dextran is a branched polysaccharide with glucose subunits. It is a large molecule that over time cannot leak out of the liposome, which is located inside the vial. Dextran can be tagged with a variety of fluorescent probes. Liposomes encapsulating fluorescent dextran can be used in experiments that require tracking of fluorescently water-soluble cargo. The liposome formulation of encapsulated dextran fluorescent dyes is extensively dialyzed and cleaned, thus eliminating the need for the end user to separate encapsulated dextran fluorescent dyes from non-encapsulated ones. https://www.cd-bioparticle...