Is there a finished product for the molecular sieve when separating active proteins of different sizes?
When molecular sieves are used to separate active proteins of different sizes, the sieves typically refer to commercially available gel filtration (also known as size-exclusion) media. This medium is a purchasable product material, and common brands such as GE Healthcare (now Cytiva), Bio-Rad, Sigma-Aldrich, etc., provide various prefabricated molecular sieve columns or media for laboratory personnel to fill themselves. These prefabricated molecular sieves have different pore size ranges to accommodate the separation of protein molecules of different sizes.
Therefore, you can select the appropriate prefabricated molecular sieve column or medium based on the size range of the proteins you need to separate.
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