Hydrophilic Membranes

Find the right filtration solution for your medical device design from our broad range of membranes. We have biocompatibility, toxicology, drug compatibility, solvent compatibility, and other data available.

Typical Applications

• IV Therapy 
• Ophthalmic 
• Radio-labeled drugs 
• Blood, plasma drugs 
• Irrigation 
• Clinical Reagents 

Merck Express Membrane

The first Merck membrane to deliver: high flow for faster filtration; high throughput for increased retention; and low protein-binding for minimal adsorption. Ideal for use in many devices, especially 96-hour IV filters and other extended applications. Low extractable levels. Excellent sealing to most plastics.

Durapore Membrane (PVDF)

This unique polyvinylidene fluoride membrane is one of the lowest protein-binding membranes available -- binding far less protein than nitrocellulose, nylon, or PTFE. Compatible with a broad range of chemicals. Available in a wide range of pore sizes. It's the same membrane that is used by pharmaceutical companies around the world for process filtration of pharmaceuticals.

MF-Merck Membrane

The most economical choice for basic aqueous filtration. It provides excellent flow, throughput, and value. Available in just about any pore size from 0.025 to 8 µm.

Gemini Patterned Membrane Process

By combining hydrophilic and hydrophobic regions on one membrane, this unique process eliminates air-locking in filtration devices used for irrigation, suction, radiology, and imaging. The process can be applied to PES, PTFE, and PVDF membranes.

Irrigation and Suction

Filter units with Gemini-treated membranes can be used to dispense and suction fluids, such as irrigation fluids used during eye surgery.

Radiology and Imaging

Gemini membranes eliminate handling of air-locked units during filtration of radioactive or other potentially harmful solutions.

Ultra-High Molecular Weight Polyethelene (UPE)

A good value, versatile and seals well to most plastics.

Prefilters

Polypropylene, glass fiber, and reinforced mixed cellulose esters filters are available. Polypropylene has low extractables and has been treated with a patented chemistry to prevent protein binding. Cellulose esters are formed on a cellulose or polyester web for easier manufacturing.

Need help determining which membrane you need?
Download Our Microfiltration Membranes Product Guide.