Polycarbonate Membrane – Microscience

Polycarbonate (PCTE) membrane filters are clear, thin, microporous filters with a smooth flat surface and precisely controlled cylindrical pores.

The precise port size of the PCTE filters is achieved by exposing polycarbonate film to charged particles in a nuclear reactor which leaves tracks in the film. The pore density is controlled by the duration of time that the polycarbonate film is exposed to the charged particles. The tracks on the polycarbonate film are then dissolved in a chemical solution to form cylindrical pores.

Pore sizes are controlled by varying the temperature, strength and exposure time of the etching solution.

This filter offers several benefits when viewing surface samples with optical or electron microscopes.

PCTE filters eliminate the clearing steps in microscopy required when using mixed esters of cellulose filters. The unique manufacturing process results in an extremely narrow pore size distribution for accurate separation of samples by size. The PCTE filters do not stain, minimising background interference.

Dia.	Cat.No.	Qty/Pk
0.01um pore size
13mm	KN1CP01300	100
25mm	KN1CP02500	100
47mm	KN1CP04700	100
0.03um pore size
13mm	KN3CP01300	100
25mm	KN3CP02500	100
47mm	KN3CP04700	100
0.05um pore size
13mm	KN5CP01300	100
25mm	KN5CP02500	100
47mm	KN5CP04700	100
90mm	KN5CP09025	30
142mm	KN5CP14225	20
293mm	KN5CP29325	20
0.08um pore size
13mm	KN8CP01300	100
25mm	KN8CP02500	100
47mm	KN8CP04700	100
90mm	KN8CP09025	30
142mm	KN8CP14225	20
293mm	KN8CP29325	20
0.1um pore size
13mm	K01CP01300	100
25mm	K01CP02500	100
47mm	K01CP04700	100
90mm	K01CP09025	30
293mm	K01CP29325	20
142mm	K01CP14225	20
0.2um pore size
13mm	K02CP01300	100
25mm	K02CP02500	100
47mm	K02CP04700	100
90mm	K02CP09025	30
142mm	K02CP14225	20
293mm	K02CP29325	20

Applications

Chemotaxis
Microscopy
Cytology
pH Range: 4-8

Dia.	Cat.No.	Qty/Pk
0.4um pore size
13mm	K04CP01300	100
25mm	K04CP02500	100
47mm	K04CP04700	100
90mm	K04CP09025	30
142mm	K04CP14225	20
293mm	K04CP29325	20
0.6um pore size
13mm	K06CP01300	100
25mm	K06CP02500	100
47mm	K06CP04700	100
90mm	K06CP09025	30
142mm	K06CP14225	20
293mm	K06CP29325	20
0.8um pore size
13mm	K08CP01300	100
25mm	K08CP02500	100
47mm	K08CP04700	100
90mm	K08CP09025	30
142mm	K08CP14225	20
293mm	K08CP29325	20
1.0um pore size
13mm	K10CP01300	100
25mm	K10CP02500	100
47mm	K10CP04700	100
90mm	K10CP09025	30
142mm	K10CP14225	20
293mm	K10CP29325	20
2.0um pore size
13mm	K20CP01300	100
25mm	K20CP02500	100
47mm	K20CP04700	100
90mm	K20CP09025	30
293mm	K20CP29325	20
142mm	K20CP14225	20
3.0um pore size
13mm	K30CP01300	100
25mm	K30CP02500	100
47mm	K30CP04700	100
90mm	K30CP09025	30
142mm	K30CP14225	20
293mm	K30CP29325	20

These filters are autoclavable with a maximum operating temperature of 140°C (284°F). Filters are 6-11 microns thick, depending on pore size.

Dia.	Cat.No.	Qty/Pk
5.0um pore size
13mm	K50CP01300	100
25mm	K50CP02500	100
47mm	K50CP04700	100
90mm	K50CP09025	30
142mm	K50CP14225	20
293mm	K50CP29325	20
8.0um pore size
13mm	K80CP01300	100
25mm	K80CP02500	100
47mm	K80CP04700	100
10.0um pore size
13mm	K99CP01300	100
25mm	K99CP02500	100
47mm	K99CP04700	100
12.0um pore size
13mm	K12CP01300	100
25mm	K12CP02500	100
47mm	K12CP04700	100
14.0um pore size
13mm	K14CP01300	100
25mm	K14CP02500	100
47mm	K14CP04700	100
20.0um pore size
13mm	K22CP01300	100
25mm	K22CP02500	100
47mm	K22CP04700	100

Polycarbonate Membrane