Unsupported and Supported PES Microfiltration Membrane Rolls Disks Flat Sheets

Product Specification

Unsupported and Supported PES Microfiltration Membrane Rolls Disks Flat Sheets

Polyethersulfone (PES) membranes are widely used in aqueous solutions for the removal of fine particles, bacteria, and fungi. These membranes possess remarkable versatility and can be applied in various applications such as sample preparation, sterile filtration, and infusion therapy. PES membranes are naturally hydrophilic which allows them to wet out quickly and completely. This property enables fast filtration with superior flow rates and high throughputs, making them an ideal choice for applications that require efficient and effective separation of substances.

Moreover, PES membranes exhibit extremely low protein binding capabilities, minimizing the likelihood of target analyte binding. This feature ensures that the membrane maintains its selectivity and purity during the filtration process, allowing for accurate and reliable results.In addition to their functional properties, Polyethersulfone (PES) Membrane Filters are also compatible with various sterilization methods such as EtO, gamma irradiation, and autoclaves. This compatibility makes them suitable for use in harsh environments where conventional sterilization methods may not be feasible or effective.

PES Microfiltration Membranes with and without support layers are optional and available with us. Supported with PP or PET layer, the membrane filters will have additional benefits of strong dimensioinal stability which make them able to withstand agressive further processing and easier to handle. And we offer PES filter membranes in selectable formats of flat sheets, discs and rolls, with pore sizes ranging from 0.1 to 15 microns, conforming to ISO sanitary standards for pharmaceutical, healthcare and life-sciences filtration applications. Every batch of sample and bulk are tested before delivery and the quality control process gurantees lot to lot quality consistency in terms of porosity, physical and chemical filtration properties.

Features of PES Microfiltration Membranes 

• 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

As an important type of filter membranes for healthcare professionals and researchers, PES membranes offer reliable and versatile filtration for aqueous solutions requiring removal of fine particles, bacteria, and fungi. Their hydrophilic nature, fast filtration rates, low protein binding, and compatibility with sterilization methods make them an excellent option for various applications in the field of sample preparation, sterile filtration, and infusion therapy. 

• Sample Preparation: The low protein binding nature of these polyethersulfone membranes make them well suited for biological sample preparation. The membranes can be used for coarse particulate removal in prefiltration applications or as a fine final filter for clarification. PES membrane yields high microsphere recovery and reduces the incidence of false positives in serological assays.
• Sterile Filtration: Available in 0.1 and 0.22 µm pore sizes, these polyethersulfone membrane grades provide sterilization of buffers, culture media, additives, and pharmaceutical filtration. If mycoplasma contamination is a concern, the 0.1 µm PES membrane provides assurance that critical samples will not be contaminated.
• Healthcare: For infusion therapy, the inherent hydrophilicity of the membrane allows fast priming of a finished device and provides a barrier to air passing through the wetted membrane. While wetting out quickly, PES membrane provides high throughput over time extending the life of the finished product. The membrane has a uniform pore structure for application requirements of sterile fluids and particulate retention.