Percoll is a well-referenced media for density gradient centrifugation of cells, viruses, and subcellular          particles. Percoll is composed of colloidal silica coated with polyvinylpyrrolidone (PVP)

• For separation of cells, subcellular particles and larger viruses (down to ~ 70S) under gentle conditions which preserve viability and morphological integrity.
• Non-toxic to cells.