Polycarbonate (PCTE) Membrane Filters, Hydrophilic, 3.0um, 25mm, White, Nonsterile, 100/Pk
GVS SKU: 1215063

Featuring a thin, microporous polycarbonate track-etched (PCTE) film with precisely defined cylindrical pores, this hydrophilic 3.0um membrane disc captures particles larger than its rated pore size directly on a smooth, flat surface. Measuring 25mm in diameter, the membrane is treated with polyvinylpyrrolidone (PVP) to render the naturally hydrophobic polycarbonate hydrophilic, supporting consistent aqueous wetting and flow. Each membrane is white and not gridded, supplied non-sterile in packs of 100.

Key Polycarbonate Track Etch (PCTE) Membrane Characteristics

• Hydrophilic surface: PVP treatment makes the inherently hydrophobic polycarbonate film readily wettable for aqueous filtration.
• Precisely defined pores: A two-step track-etch process creates uniform, cylindrical 3.0um pores with tight pore-size distribution for precise size separation.
• Surface capture: The thin, translucent film captures all particles larger than the pore size on its smooth, flat surface rather than within a depth matrix.
• Low protein binding: The polycarbonate film exhibits low protein binding and resists chemical staining to ease microscopic visualization.
• Superior strength: The track-etched polycarbonate film provides mechanical durability despite its thin profile.

Key Construction Characteristics

• Membrane material: Polycarbonate Track Etch (PCTE), white, not gridded.
• Pore size and diameter: 3.0um pore size, 25mm disc diameter.
• Sterility and pack: Supplied non-sterile, 100 discs per pack.
• Maximum use temperature: 140 degrees C.

This membrane delivers precise, surface-based particle capture that supports reproducible sample preparation and analysis. The uniform cylindrical pore structure maintains tight size discrimination, while the low-binding polycarbonate film helps preserve sample integrity for downstream microscopy and assays.

Color

White

Diameter

25mm

Grid (Yes/No)

No

Material

Polycarbonate Track Etch (PCTE)

Maximum Operating Temperature (°C)

140

Membrane Color

White

Mesh Format

Circle

Pack Count

100

Pore Size (µm)

3

Sterility

Nonsterile

Wettability

Hydrophilic

• General Filtration Provides reliable clarification of aqueous samples using a precisely sized 3.0um hydrophilic membrane.
• Microscopy and Particle Analysis Captures particles larger than 3.0um on a smooth, flat surface for clear microscopic visualization.
• Blood and Plasma Work Supports removal of red blood cells from plasma through precise surface capture.
• Assay Flow Control Regulates the flow of reagents through cellular and immunological assays.
• Prefiltration Serves as a precise prefilter to protect downstream membranes from larger particulates.
• Legionella Testing Suitable for filtration steps in Legionella analysis per UNI EN ISO 11731.