Percoll is used for the isolation of cells, organelles, viruses by density centrifugation. Percoll consists of colloidal silica particles of 15-30 nm diameter (23% w/w in water) which have been coated with polyvinylpyrrolidone (PVP). Percoll is well suited for density gradient experiments, possessing a low viscosity compared to alternatives, low osmolarity, and no toxicity towards cells and their constituents.
Percoll is a registered trademark of GE Healthcare.
This article does not cite any sources. (September 2007) (Learn how and when to remove this template message)
|40px||This biochemistry article is a stub. You can help Wikipedia by expanding it.|