Evaluation of membrane filtration system using The "Pore Diffusion" for eliminating viruses

Area of Science:

• Biotechnology
• Membrane Science
• Virology

Background:

• Virus removal is critical for bioproduct safety.
• Conventional filtration methods can increase trans-membrane pressure, impacting process economics.
• Novel filtration strategies are needed to improve efficiency and cost-effectiveness.

Purpose of the Study:

• To evaluate the efficacy of a novel membrane filtration system,
• Pore Diffusion
• , for virus removal.
• To assess the impact of flow manipulation on trans-membrane pressure during filtration.
• To determine the optimal configuration of the
• Pore Diffusion
• system for virus removal.

Main Methods:

• The
• Pore Diffusion
• system was developed, altering flow direction to minimize trans-membrane pressure.
• Viral activity was measured before and after filtration using infectivity assays and real-time reverse transcription-PCR (RT-PCR).
• Four different
• Pore Diffusion
• modules with varying pore sizes were tested.

Main Results:

• The
• Pore Diffusion
• system demonstrated virus removal capabilities.
• The largest module, with an average pore size of 80 nm, achieved the highest log reduction value for viral activity.
• Filtration was achieved without significant increases in trans-membrane pressure.

Conclusions:

• The
• Pore Diffusion
• system shows promise for economically and effectively filtering viruses from bioproducts.
• This technology offers a low-pressure alternative for virus removal in bioprocessing.
• Further optimization of the system may enhance its application in biopharmaceutical manufacturing.