Millipore filters offer improved flow rates

Published: 29-Nov--0001

Millipore, a life science leader in biopharmaceutical manufacturing, has added a new 33mm model to its range of Millex syringe filters.


With 20% more surface area than standard 25mm devices, the new filters offer a higher process volume of 200 ml and a greater burst strength (150 psig), allowing for high operating pressure. A further advantage is that researchers do not need to use multiple filters per sample, worry about incomplete filtration or run the risk of filters bursting or clogging.

The 33mm Millex syringe filters can be combined with the Millipore Express PLUS (PES) membrane and used in sterile cell culture and clinical pharmaceutical applications.

They are available in 0.22 µm (GP) and 0.45 µm (HP) pore sizes and deliver faster filtration rates with low protein-binding properties.

In addition to improving filtration throughput, the new Millex filters also increase experimental reproducibility. Because 33 mm filters have a low hold-up volume (less than 100 µL), there is minimal sample loss during filtration.

The low-protein-binding Millipore Express PLUS (PES) membrane allows maximum recovery of soluble proteins, such as serum components typically added to cell culture media. Preserving these additives translates into consistently intact, sterile cell culture media, ensuring reproducible cell growth, behaviour, and downstream results.

You may also like