GVS 1215632 Poretics™, Filtration Membrane Polycarbonate Track Etched Hydrophilic 47mm 5.0 µm

A track-etched membrane is manufactured by exposing a polycarbonate film to ion tracks followed by chemical etching to create precisely controlled, uniform cylindrical pores. This results in a smooth, flat membrane where particles larger than the pore size are captured on the surface — unlike random fiber networks in other filters.

The hydrophilic membrane is treated with a wetting agent (such as polyvinylpyrrolidone) so it readily absorbs and allows aqueous liquids to pass through without pre-wetting. This makes it ideal for filtering water-based samples and other polar liquids.

A 5.0 µm pore size is commonly used for general purpose filtration, pre-filtration, removal of larger particulates, cytology sample capture, microscopy sample preparation, and tests where capture of particles above ~5 µm is required.

Yes — track-etched membranes have a smooth, flat surface and clean pores that minimize background interference, making them excellent substrates for microscopic examination of collected particles or cells after filtration.

Because pore size and density are precisely controlled during manufacturing, these membranes offer high consistency in particle separation, low extractables, and low protein binding, which help improve accuracy and reduce contamination in analytical workflows.