Hydrosart® is a stabilized cellulose based membrane that has been optimized for the biotechnological and pharmaceutical industry. the Hydrosart® membrane is a stable polymer that features a broad pH range. Hydrosart® is also extremely hydrophilic, making it non-protein binding, virtually non- foul, and has extremely high flux. Membrane regeneration, storage and depyrogenation can be accomplished by using NaoH even at elevated temperatures. these features make Hydrosart® an ideal membrane for biological applications.