Hydrophilic / Hydrophobic PVDF Membrane


Cobetter Polyvinylidene Fluoride (PVDF) membrane is available in Hydrophobic or Hydrophilic version. The PVDF membrane is produced with high porosity and optimized porous structure, offering 15% higher flow rate than competitors.  (Hydrophilic Version).

The Hydrophobic version PVDF membrane is sometimes used as a carrier media of biosensors, but in most cases a transfer membrane for protein blotting applications (Western Blotting / ELISPOT). Because of its ultra-low protein adsorption, there will be no lost of proteins during reprobing or transfer.  The optimized porous structure of Cobetter PVDF membrane makes it easy to access bound proteins and remove unbounded probes. The low background for fluorescent blots of PVDF membrane significantly increases signal-to-noise ratios for high sensitively in quantitative, multiplexing applications.

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PVDF Western Blotting Membrane

The Hydrophilic version PVDF membrane, with very low protein binding feature, is ideal for clarification and sterile filtration of bio-pharmaceutical fluids. If positively-charged, the Hydrophilic version has excellent endotoxin removal efficiency and is also ideal for 96/120 hours lifetime IV filters. Both versions have broad chemical compatibility and gamma tolerance.  


Certified Biological Safety (ISO 10993/USP Class VI)

Wide Range of Pore Sizes

Outstanding Flow Rates & Longer Life

Lot-to-lot Consistency

Compatible with Different Sealing Methods

Ultrasonic, Heat, Mechanical, RF Welding, Inserting Molding

Sterilization Compatibility

Autoclave, Ethylene Oxide, E-Beam, Gamma Irradiation

Available Pore Sizes (μm)

0.1 /  0.2 /  0.45 /  0.65 /  1.0 /  3.0

Typical Applications


  Hydrophobic :

- Western Blotting Membrane

- Immunoblotting

- Protein Sequencing

- Biosensors

  Hydrophilic :
- Endotoxin Adsorption (Positively Charged)

- Low Protein Adsorption Filtration

- Microfiltration

- Solvent Sterile Filtration

- IV Filter for 96 & 120 Hrs

Membrane Formats

Roll,   Sheet,   Disc, Adhesive Backing,  Customization

For technical data sheet or application inquiry, you are more than welcome to contact our sales representative by sales@cobetterfilter.com or leave a message

  • Membrana hidrofílica / hidrofóbica de PVDF El filtro de membrana de PVDF (difluoruro de polivinilideno) hidrofílico modificado de Cobetter tiene una excelente humectabilidad del agua, proporcionando un alto caudal. Las membranas de PVDF son naturalmente hidrófobas pero se modifican a una naturaleza hidrófila. Útil para una amplia gama de aplicaciones, tanto a base de solvente acuoso como no agresivo. Estas membranas son típicamente de baja unión a proteínas y se usan con frecuencia para esterilizar la filtración.