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Depth Filters for Biopharmaceutical Manufacturing

Advanced Clarification Technology for Biopharmaceutical Manufactuing
Advanced Clarification Technology

3M offers some of the most effective depth filter technology within a wide range of product portfolios.

Depth Filters Overview

  • 3M™ Zeta Plus™ Depth Filters

    3M™ Zeta Plus™ Depth Filters are made of wet laid media containing cellulose fibers, filter aid and binding resins that impart a charge to the filtration matrix. 3M depth filters are available in a wide range of filter matrices to fit with your process needs.

Media Series

  • SP media has the widest nominal pore size range relative to other 3M Zeta Plus media offerings, including a greater number of grades. SP media also has grades with larger nominal pore sizes than LA or ZB media.

  • LA media is the cleanest 3M Zeta Plus media family offered. 3M Zeta Plus LA series low aluminum (LA) filter media are designed to provide low levels of extractables, especially aluminum.

  • ZB media offers a higher charge level than SP or LA media. It offers single layer and dual layer grades with a smaller nominal pore size than either the SP or the LA media family.

  • Known throughout the biopharmaceutical manufacturing industry for their speed, low cell shear and cleanliness, 3M depth filters are also easy to handle, helping to simplify the depth filter step.

Chromatography Filters Overview

  • chromatography filters

    For greater chromatography column efficiency and better economy in biopharmaceutical manufacturing, 3M provides a hybrid design of chromatographic and membrane separation using nonwoven media and membrane combined in one device. One mode of separation is based on charge and the other is based on size.

    The filter is a combination of two types of media (Q-functional nonwoven and nonfunctional membrane) that work together to provide unsurpassed process fluid clarity and particle size control for the process fluid when using a single unit operation. The defined pore size of the qualifying membrane provides removal of insoluble particles well below 0.1 µm in size through Q functionalized nonwoven, resulting in superior turbidity reduction. At the same time, the high chromatographic capacity of the Q-functional nonwoven provides substantial reduction of negatively charged, soluble impurities including DNA and HCP.

  • The 3M Zeta Plus Encapsulated System is a single-use depth filtration system designed for cell culture fluid clarification or downstream impurity removal. The Zeta Plus Encapsulated System is designed for process scales of less than 1 liter to 15,000 liters.
  • 3M Zeta Plus SP Series Filter Cartridges provides optimal solution for pharmaceutical manufacturing clarification applications. They are constructed with 3M Zeta Plus SP Series depth filtration media, composed of inorganic filter aid, cellulose and a resin system.

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