Although realized in 1983, ASTM's standrad test method for determining bacterial retention of membrane filters used for liquid filtration is still hugely beneficial to today's pharmaceutical industry.

We have developed a screen for detecting E. coli colonies that produce soluble recombinant target proteins at the colony level: the colony filtration (CoFi) blot. Colonies are transferred, induced and ...

Sterilizing grade filters are widely used in the biopharmaceutical industry and were once thought of as being perfect. However, these filters have experienced rapid developments and improvements ...