Polycarbonate Track Etch Membrane Discs, 0.2um, 25mm, White, Nonsterile, 100/Pk
GVS SKU: 1215611

Featuring a thin polycarbonate film with precisely defined, straight-through cylindrical pores, these Polycarbonate Track Etch (PCTE) membrane discs deliver a 0.2 micron pore size across a 25mm diameter format. The membrane is produced through a two-step track-etch process in which polycarbonate film is exposed to ion particles that create tracks through the material, and those tracks are then chemically etched into precise, cylindrical pores. This controlled process yields a smooth, flat, translucent surface with a narrow pore size distribution, and treatment with polyvinylpyrrolidone (PVP) renders the membrane hydrophilic. These discs are supplied white, plain (not gridded), and nonsterile in packs of 100.

Key Polycarbonate Track Etch Membrane Characteristics

• Hydrophilic surface: treated with PVP for ready wetting with aqueous samples.
• Precise surface capture: uniform, non-tortuous cylindrical pores retain particles primarily on the membrane surface for accurate, reproducible separation.
• Low protein binding: minimizes nonspecific adsorption and sample loss.
• Smooth, flat surface: supports even particle distribution and eases microscopic visualization.
• Resists chemical staining: aids microscopy and imaging workflows.

Key Construction Characteristics

• Membrane material: Polycarbonate Track Etch (PCTE).
• Diameter: 25mm disc format.
• Pore size: 0.2 micron.
• Color: white, plain (not gridded).
• Sterility and pack: nonsterile, 100 per pack.

These membranes provide precise, reproducible particle separation with high sample visibility on the filter surface. Their low protein binding and uniform pore structure help maintain sample integrity across analytical and general filtration workflows. The hydrophilic, smooth surface supports consistent performance in both routine and demanding laboratory applications.

Color

White

Diameter

25mm

Grid (Yes/No)

No

Material

Polycarbonate Track Etch (PCTE)

Maximum Operating Temperature (°C)

140

Membrane Color

White

Pack Count

100

Pore Size (µm)

0.2

Sterility

Nonsterile

Wettability

Hydrophilic

• Particulate Analysis Uniform cylindrical pores capture particles on the membrane surface for accurate, reproducible particle sizing and counting.
• Epifluorescence Microscopy The smooth, flat surface and stain resistance support clear viewing of captured samples under optical and fluorescence microscopy.
• Cell Biology and Bioassays Low protein binding and a defined pore structure make the membrane suitable for cellular filtration assays and reagent flow control.
• Fluid Clarification Precise 0.2 micron surface capture clarifies aqueous samples while minimizing adsorptive sample loss.
• Water Microbiology Surface retention supports collection and enumeration of microorganisms from water samples.
• Environmental Sample Preparation Hydrophilic, high-purity construction suits clarification and analysis of environmental aqueous samples.