Polycarbonate Track Etch Membrane Filters, 0.4um, 47mm, Hydrophobic, Nonsterile, 100/Pk
GVS SKU: 1215073

Featuring a thin, microporous polycarbonate track etched (PCTE) film with precisely defined cylindrical pores, this 0.4um, 47mm membrane disc is a PVP-free hydrophobic version that shares the same structure as the standard PCTE membrane but omits the polyvinylpyrrolidone wetting agent. The smooth, translucent, glass-like surface captures all particles larger than the pore size on the membrane face, making it well suited to chemotaxis assays, venting, and high-purity general filtration. Each disc is supplied nonsterile and not gridded in a pack of 100.

Key Polycarbonate Track Etch (PCTE) Membrane Characteristics

• Naturally hydrophobic, PVP-free: manufactured without the wetting agent, retaining the inherent hydrophobicity of polycarbonate for venting and chemotaxis work.
• Absolute pore size and density: precisely etched cylindrical pores capture particles larger than the pore size on the surface for accurate size separation.
• Smooth, thin, glass-like surface: the planar face makes the membrane ideal for particle identification and observation by optical or electron microscopy.
• Superior strength: high tensile strength maintains pore size and density and resists stretching during handling.
• Low protein binding and low extractables: minimizes sample interaction for clean, consistent results.

Key Construction Characteristics

• Material: polycarbonate track etched (PCTE) film, white, not gridded.
• Format: 47mm diameter membrane disc with a 0.4um pore size.
• Membrane thickness: 5 to 20um (0.005 to 0.02mm).
• Maximum use temperature: 140 degrees C.
• Sterility and pack: nonsterile, supplied 100 per pack.

This membrane delivers consistent, controlled flow with reliable surface capture of cells and particles larger than the rated pore size. Its low absorption and low extractables help maintain sample integrity and support reproducible results across cellular assays, venting, and high-purity filtration.

Diameter

47mm

Grid (Yes/No)

No

Material

Polycarbonate Track Etch (PCTE)

Maximum Operating Temperature (°C)

140

Membrane Color

White

Membrane Thickness (µm)

5 to 20

Pack Count

100

Pore Size (µm)

0.4

Sterility

Nonsterile

Vent (Yes/ No)

Yes

Wettability

Hydrophobic

• Chemotaxis Assays The PVP-free hydrophobic surface supports cellular migration studies toward a chemical stimulus with rapid cell migration and reduced incubation time.
• Venting Applications The naturally hydrophobic membrane allows air passage while blocking aqueous liquids, making it useful for venting in laboratory devices.
• Microscopy and Particle Analysis The smooth, translucent, glass-like surface holds particles on the membrane face for observation by optical or electron microscopy.
• High-Purity General Filtration Precise cylindrical pores and low extractables provide clean, controlled filtration for high-purity applications.
• Size Separation Absolute pore size and density capture particles larger than 0.4um on the surface for accurate fractionation.
• Blood and Cellular Studies The thin polycarbonate film is suited to capturing and observing cells in blood-based and cellular assays.