GLASS CAPILLARY TUBING
 See list of glass accessories with prices >
Sutter Instrument Company, in addition to the finest micropipette pullers available, offers a wide selection of high quality capillary glasses in various sizes and materials. Though there are many types and sizes of capillary glass available, we have carefully selected only those that pass our criteria. Our expertise in micropipette technology assures you of precision and high quality. Glass Descriptions

We offer capillary glass tubing in three different compositions; quartz, borosilicate and aluminosilicate. Each composition has its own unique properties and the selection will be determined by your application and your puller’s capabilities.


PULLER FILAMENTS   
See list of puller filaments with prices >
Minimum purchase of filaments is 2. Appropriate filament selection depends on your research application, but a general guideline for filaments is as follows:

Box Filaments are recommended for large diameter, double barreled, or aluminosilicate glass. Box filaments are particularly suitable for slice preparations where long, parallel walls would aid penetration. If using a box filament, the size of the square box should be approximately 1.0mm to 1.5mm larger than the outside diameter of the glass that you will be using.

For IVF and ICSI applications, a 2.5mm x 4.5mm box filament is recommended. For pronuclear injection work, we recommend a 2.5mm x 2.5mm box filament. Call for more specific advice or to request a combination of settings, filaments, and glass for your application.

Trough Filaments are excellent general purpose filaments and are recommended for patch pipettes produced from either standard or thin wall glass.

Sutter pre-programs the P-97 with a 2.5mm box filament unless an alternative filament is requested.

For either type of filament, increasing the filament width tends to increase the length of the pipette taper. If there are specific questions as to the sizes needed, please call and our technical support staff will guide you in your choice.

Fire Polishing
As of November 1, 2004 all borosilicate and aluminosilicate capillary glass offered by Sutter Instrument will have fire-polished ends. This process eliminates any sharp edges, making it easier to insert into holders, and does not affect the electrical or mechanical properties of the glass.

Custom Pipettes
Sutter Instrument Company can make custom pipettes and microtools not commonly available from other pipette manufacturers. The custom pipettes are considered non-sterile and are manufactured for research applications and non-human use. Please contact Sutter Instrument for further details.