Specialized Tools for Electrophysiology and Cell Biology Research

Clark Borosilicate Multi-Barrel

Product Summary

The properties of borosilicate glass make it the most popular material among researchers for the fabrication of electrodes and micro-pipettes.

  • High quality borosilicate glass
  • Two, three, five and seven barrel configurations
  • All multi-barrel configurations with filaments
  • Capillaries fused along their entire length
  • Ratio of outside to inside diameters preserved up to the pipette tip after pulling

The low softening temperature of this glass combined with its mechanical strength, chemical durability, high electrical resistivity, and ability to withstand thermal stress make these capillaries the most widely used in the world. Standard wall multi-barrel Clark borosilicate capillaries are offered in a variety of outer and inner diameters. Each barrel has an inner filament.

Micropipettes and microelectrodes manufactured from Clark glass are used primarily in intracellular and extracellular research. The end user can manufacture their own microelectrodes and micropipettes using standard pipette pulling and microforge techniques.

 

Barrels OD
(mm)
ID
(mm)
Wall
Thickness
(mm)
Tolerance
(mm)
Length Qty/Pkg Model Order # Quick Add
to Order
2 1.5 0.86 0.32 ± 0.05 75 mm 100 2GC150F-7.5 30-0003 Login
100 mm 100 2GC150F-10 30-0001 Login
7 1.0 0.58 0.21 ± 0.05 150 mm 100 7GC100F-15 30-0015 Login

 

Composition 80.9% SiO2, 12.9% B2O3,
4.4% Na2O, 1.8% Al2O3
Softening Temp 815 °C
Dielectric Const 4.7
Tolerance OD (per barrel) ± 0.05 mm

 

Barrels OD
(mm)
ID
(mm)
Wall
Thickness
(mm)
Tolerance
(mm)
Length Qty/Pkg Model Order # Quick Add
to Order
2 1.5 0.86 0.32 ± 0.05 75 mm 100 2GC150F-7.5 30-0003 Login
100 mm 100 2GC150F-10 30-0001 Login
7 1.0 0.58 0.21 ± 0.05 150 mm 100 7GC100F-15 30-0015 Login

 

References

References

  1. Protons Trap NR1/NR2B NMDA Receptors in a Nonconducting State,
    Tue G. Banke, Shashank M. Dravid, and Stephen F. Traynelis,
    The Journal of Neuroscience, January 5, 2005, 25(1):42-51

Pricing Top Description

Lead time for Clark Glass is commonly 4 to 6 weeks.

Order No. Model No. Product Description USA Price Order
Two-barrel configuration with 1.5 mm OD - wall thickness 0.32 mm
30-0003 2GC150F-7.5 Barrel - Multi-barrel (2), with filament, 1.5 x 75 mm (OD x L) Login Login
30-0001 2GC150F-10 Barrel - Multi-barrel (2), with filament, 1.5 x 100 mm (OD x L) Login Login
Seven-barrel configuration with 1.0 mm OD - wall thickness 0.21 mm
30-0015 7GC100F-15 Barrel - Multi-barrel (7), with filament, 1.0 x 150 mm (OD x L) Login Login

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