Polycarbonate Track Etch Membrane Filters, 0.4um, 25mm, Hydrophilic, Nonsterile, 100/Pk
GVS SKU: 1215614

Featuring a thin, microporous polycarbonate track-etched (PCTE) film with precisely defined cylindrical pores, this 25mm membrane disc delivers a 0.4um absolute pore rating for precise size separation in high-purity and general filtration. The membrane is treated with polyvinylpyrrolidone (PVP) to render the naturally hydrophobic polycarbonate hydrophilic, allowing it to process aqueous and alcoholic samples without pre-wetting. Its translucent film and smooth, flat surface capture all particles larger than the pore size on a single plane, supporting clear microscopic visualization. This disc is supplied nonsterile in a pack of 100.

Key Polycarbonate Track Etch Membrane Characteristics

• Hydrophilic surface: PVP wetting treatment allows the membrane to wet out spontaneously in water and aqueous or alcoholic solutions.
• Precise pore structure: Absolute pore size and controlled pore density provide narrow pore distribution for accurate size separation.
• Surface capture: A smooth, flat surface retains all particles larger than the pore size on a single plane.
• Low protein binding: Minimizes nonspecific adsorption of filtrate components.
• Microscopy ready: Resists chemical staining and offers a glass-like surface that eases optical and electron microscopic analysis.

Key Construction Characteristics

• Material: Polycarbonate Track Etch (PCTE) film, white, not gridded.
• Diameter: 25mm disc with a 0.4um pore size.
• Sterility: Nonsterile, packaged 100 per pack.

The uniform, precisely etched pore structure delivers consistent, reproducible filtration performance across samples. Low protein binding and minimal extractables help maintain sample integrity, while the strong, translucent film withstands handling and supports reliable downstream visualization.

Diameter

25mm

Grid (Yes/No)

No

Material

Polycarbonate Track Etch (PCTE)

Maximum Operating Temperature (°C)

140

Membrane Brand

Poretics

Membrane Color

White

Pack Count

100

Pore Size (µm)

0.4

Sterility

Nonsterile

Wettability

Hydrophilic

• General Filtration Provides high-purity, general-purpose liquid filtration of aqueous and alcoholic samples.
• Microscopy and Particle Analysis The smooth, flat surface captures particles on a single plane for clear optical and electron microscopic examination.
• Blood and Cellular Assays Suited to removal of red blood cells from plasma and cellular-based filtration assays.
• Reagent Flow Control Controls flow of reagents through assays while capturing cells larger than the pore size.
• Cytology Sample Preparation Retains cells on the surface for collection and downstream cytological evaluation.
• Precise Filtration and Prefiltration Delivers narrow pore distribution for accurate size separation in fuel testing and high-purity sample prep.