Attention:

Certain features of Sigma-Aldrich.com will be down for maintenance the evening of Friday August 18th starting at 8:00 pm CDT until Saturday August 19th at 12:01 pm CDT.   Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.

Isopore™ Polycarbonate Membrane Filters

Isopore™ Polycarbonate Membrane FiltersIsopore™ polycarbonate membrane is used most often for optical or electron microscopy as well as air monitoring. Because polycarbonate membrane is extremely smooth and because the pore size is very precisely defined, the membrane can accurately separate particles by size, and trapped particles or microorganisms can be easily visualized on the smooth surface.

Key applications Isopore™ filters:

  • Air monitoring
  • Epifluorescence microscopy of biological contamination

Chemotaxis (cell migration) assays

 

Isopore™ Membrane Disc Specifications

Membrane Material

Polycarbonate

Pore Sizes (μm)

0.1 - 10

Thickness (μm)

21 - 27

Water Flow (mL/min/cm2) @10 psi

0.5 - 250

Air Flow (L/min/cm2) @ 10 psi

1.3 - 72 ( typical values)

Porosity (%)

5 - 10

Wettability

Hydrophilic

Temperature Limitations

140 °C max

Refractive Index

1.6

Protein Binding Capacity (IgG)

299 - 319 μg/cm2

Chemical Compatibility

Compatible with both aqueous and organic solvents

Sterilizability

Autoclave, EtO and gamma irradiation

Surface Option

White, brown

Key Properties

Narrow pore size distribution, collects particles

on surface for analysis

Key Applications

Particle analysis, air monitoring, microscopy,

cell migration and chemotaxis assays,

epifluorescence, size fractionation of cells and

particulates

 

White Membrane Filters
Catalog Number Pore Size Filter Diameter (⌀) Pack Size Add to Cart
ATTP01300 0.8 µm 13 mm 100
ATTP02500 0.8 µm 25 mm 100
ATTP03700 0.8 µm 37 mm 100
ATTP04700 0.8 µm 47 mm 100
ATTP14250 0.8 µm 142 mm 50
DTTP01300 0.6 µm 13 mm 100
DTTP02500 0.6 µm 25 mm 100
DTTP04700 0.6 µm 47 mm 100
GTTP01300 0.22 µm 13 mm 100
GTTP02500 0.22 µm 25 mm 100
GTTP03700 0.22 µm 37 mm 100
GTTP04700 0.22 µm 47 mm 100
GTTP09030 0.22 µm 90 mm 30
GTTP14250 0.22 µm 142 mm 50
HTTP01300 0.4 µm 13 mm 100
HTTP02500 0.4 µm 25 mm 100
HTTP03700 0.4 µm 37 mm 100
HTTP04700 0.4 µm 47 mm 100
HTTP09030 0.4 µm 90 mm 30
HTTP14250 0.4 µm 142 mm 50
RTTP01300 1.2 µm 13 mm 100
RTTP02500 1.2 µm 25 mm 100
RTTP04700 1.2 µm 47 mm 100
RTTP14250 1.2 µm 142 mm 50
TCTP01300 10.0 µm 13 mm 100
TCTP02500 10.0 µm 25 mm 100
TCTP04700 10.0 µm 47 mm 100
TCTP14250 10.0 µm 142 mm 50
TETP01300 8.0 µm 13 mm 100
TETP02500 8.0 µm 25 mm 100
TETP04700 8.0 µm 47 mm 100
TMTP01300 5.0 µm 13 mm 100
TMTP02500 5.0 µm 25 mm 100
TMTP04700 5.0 µm 47 mm 100
TMTP09030 5.0 µm 90 mm 30
TMTP14250 5.0 µm 142 mm 50
TSTP01300 3.0 µm 13 mm 100
TSTP02500 3.0 µm 25 mm 100
TSTP04700 3.0 µm 47 mm 100
TSTP14250 3.0 µm 142 mm 50
TTTP02500 2.0 µm 25 mm 100
TTTP04700 2.0 µm 47 mm 100
VCTP01300 0.1 µm 13 mm 100
VCTP02500 0.1 µm 25 mm 100
VCTP04700 0.1 µm 47 mm 100
VCTP14250 0.1 µm 142 mm 50
 
Brown Membrane Filters
Catalog Number Pore Size Filter Diameter (⌀) Pack Size Add to Cart
GTBP01300 0.22 µm 13 mm 100
GTBP02500 0.22 µm 25 mm 100
GTBP04700 0.22 µm 47 mm 100
HTBP01300 0.4 µm 13 mm 100
HTBP02500 0.4 µm 25 mm 100
HTBP04700 0.4 µm 47 mm 100