Polysucrose (sold as Ficoll™ by GE Healtcare) is a polymer synthesized by cross-linking sucrose with epichlorohydrin. Polysucrose is readily soluble in water and salt solutions over a wide range of pH. As with sucrose, Polysucrose is more sensitive to acid than dextran so that care must be taken when working at acid pH.
Polysucrose 70 is a fraction of Polysucrose with a molecular weight of 70 000. The Stokes radius is ca. 50Å which is lower that that (58Å) for dextran 70 and is attributed to the fact that Polysucrose has a more spherical structure and is less flexible. Polysucrose displays excellent biocompatablity. TRITC-Polysucrose 70 is prepared by reacting Polysucrose 70 with TRITC under similar conditions to those used for TRITC-dextrans. It is supplied as a red powder which is freely soluble in water.
TRITC-Polysucrose fractions with weight average molecular weight 20 000, 40 000 and 400 000 are also available.
If you need larger quantities please contact us for a bulk quotation.