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Glass Capillaries

Glass Capillaries

WPI offers a wide spectrum of high-quality glass capillaries. We take pride in our abil­i­ty to ship your capillary glass order within 48 hours. If you need a special glass capillary tubes that does not ap­pear on our website, please call us. We will make every effort to provide it for you. A glass capillary is used when pulling micropipettes or making microelectrodes. We also offer a full line of micropipette pullers.

Fire Polishing

Fire polished glass capillaries are easier to insert into microelectrode holders without damaging the gasket. More importantly, fire-polished glass won’t scratch the chloridized wire used in a recording electrode. Fire-polishing does not affect the glass’s mechanical or electrical properties.

Filaments for Quick Filling

Single barrel standard capillaries are offered either with or without inner filaments in a variety of lengths and diameters. The filament is a thin glass rod annealed to the inner wall of the glass capillary. The filament improves the capillary action to avoid air bubble formation inside the capillary. The filament acts like a wick to draw liquid into the microelectrode or micropipette.

Capillary glass with a filament is recommended when you are pulling microelectrodes (electrophysiology) or micropipettes (microinjection) for applications that require tips smaller than 3 µm. Back filling such a pipette is nearly impossible without the filament. Without the filament, you risk the introduction of air bubbles into the pipette.

Configurations of Glass Capillaries

Standard glass is available with or without a filament fused to the inner wall. Filaments aid in the capillary action for the filling of electrodes.

Multi-barrel capillary glass is available in two, three, five and seven-barrel con­fig­u­ra­tions.

A complete range of single bar­rel thin-wall glass is sold for finer tips and shorter tapers.

A variety of special con­fig­u­ra­tions like septum theta and piggyback glass capillaries are also available.

 



Single Barrel Borosilicate Glass Capillaries

Single Barrel Borosilicate Glass Capillaries

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Aluminosilicate Glass

Aluminosilicate Glass

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Multi-Barrel Glass Capillaries

Multi-Barrel Glass Capillaries

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Patch Clamp Glass Capillaries

Patch Clamp Glass Capillaries

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Quartz Glass

Quartz Glass

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Choose Quantity
GR100-4

GR100-4

  • 1 mm Glass rods ideal for making tools, probes and tips
  • 4''/100mm long
  • Numerical Aperature: 1 
  • OD/ID Tolerance: ±0.1 mm
  • Length Tolerance: ±1 mm
  • Vial of 500
  • Recommended to use with Glass Handling Forceps (77020)


Choose Quantity
GR100-6

GR100-6

  • 1 mm Glass rods ideal for making tools, probes and tips
  • 6"/150mm long
  • Numerical Aperature: 1 
  • OD/ID Tolerance: ±0.1 mm
  • Length Tolerance: ±1 mm
  • Vial of 500
  • Recommended to use with Glass Handling Forceps (77020)

Our Clients Include:

GlaxoSmithKline
University College London
Novartis
Imperial College
University of Cambridge
University of Oxford

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