1.2 Micron Polyethersulfone (PES) Membrane Diaphragm For Disposable Filtration Devices

Our company manufacture and supply 100% PES membranes and reinforced PES membranes with PP/PET support layer, and different formats including flat sheets, discs, and rolls are available, allowing manufacturers and researchers to choose the best option for their specific needs. The pore sizes of these PES filters are selectable ranging from 0.1 micron to 15 microns. Size of flat sheets, disc filters and membrane filter rolls can be customized to best serve individual customers' needs.

PES membrane filters have a range of outstanding properties that makes them well-suited for use in a variety of applications from medical, bio-pharmaceutical industries to academic research facilities. PES membrane filters are inherently hydrophilic and suitable for use with almost all kinds of aqueous solutions. And PES membranes exhibit low level of protein and drug adsorption, which makes them a good choice for protein and liquid drug filtration applications. PES filter membranes also have excellent chemical resistance, with a pH range of 1 to 14 being well within their capabilities, they are therefore commonly utilized for handling strong bases, alcohols and resistive proteins samples.

The polyethersulfone (PES) membrane filters have asymmetrical pore structure. The pore structure varies within the thickness of the membrane such that the largest openings occur on one side and the smallest openings occur on the opposite side. When viewing the membrane with reflected light at low incidence angles, each side has a somewhat different visual appearance. The side with the largest pores will appear more dull or matte than the side with the smallest pores. With a little bit of experience, most users can easily identify the sides. For optimal throughput, the PES membrane filters should be oriented so that side with the largest pores (the duller side) is facing upstream. For applications involving microscopic analyses of captured particles or microbes, the user may choose to orient the filter so that the side with the smallest pores (the shinier side) is facing upstream. This orientation may reduce throughput but it improves the likelihood of capturing particles of interest on the surface of the membrane instead of within the pore structure.

XINNA provides comprehensive technical support and service to ensure our customers have the best experience when using our products. If you have any other questions or concerns, please feel free to contact us and our technical support team are more than happy to help you out.

Features of Polyethersulfone (PES) Membrane Filter

• Hydrophilic
• Low Extractables: <2%
• Low protein and drug binding
• High flow rate
• High retention efficiency
• High thermal stability
• Lot-to-lot quality consistency

Specifications

Applications

Polyethersulfone (PES) membrane filters possess a range of exceptional properties that make them ideal for a variety of applications in the field of pharmaceuticals processing, medical device manufacturing, and life science research. They are a recommended solution for sterilization use in small medical filter devices of infusion and transfusion therapy, for example the IV filters. And because of its outstanding characteristics such as low protein absorption and high thermal stability, PES membranes are also extensively used in the healthcare industry for protein separation, monoclonal antibodies, vaccine production and other microbiological fluid filtrations.

• Pharmaceutical filtration
• I.V. filters
• Biologics, Buffer, Serum, Reagents and Cell Culture Media filtration
• Opthalmics