Specialized Tools for Electrophysiology and Cell Biology Research

Clark Borosilicate Standard Wall with Filament

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
  • Easy filling due to filament
  • Available in standard wall configurations
  • Outside diameters from 1.0 to 3.0 mm
  • Exceptionally low tip impedance (less than 50 MΩ)
  • Excellent for patch clamp pipettes and microinjection needles
  • Economical
  • 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 resistance, high electrical resistivity, and ability to withstand thermal stress make these capillaries the most widely used in the world. Standard wall Clark borosilicate capillaries are offered in a variety of outer and inner diameters all without an inner filament.

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

OD
(mm)
ID
(mm)
Wall
Thickness
(mm)
Tolerance
(mm)
Length Qty/Pkg Model Order # Quick Add
to Order
1.0 0.50 0.25 ± 0.05 75 mm 500 GC100FS-7.5 30-0034 Login
100 mm 500 GC100FS-10 30-0032 Login
0.58 0.21 ± 0.05 75 mm 500 GC100F-7.5 30-0021 Login
100 mm 500 GC100F-10 30-0019 Login
150 mm 500 GC100F-15 30-0020 Login
1.2 0.69 0.26 ± 0.05 75 mm 350 GC120F-7.5 30-0046 Login
100 mm 350 GC120F-10 30-0044 Login
150 mm 350 GC120F-15 30-0045 Login
1.5 0.86 0.32 ± 0.05 75 mm 225 GC150F-7.5 30-0060 Login
100 mm 225 GC150F-10 30-0057 Login
150 mm 225 GC150F-15 30-0058 Login
2.0 1.16 0.42 ± 0.10 75 mm 125 GC200F-7.5 30-0076 Login
100 mm 125 GC200F-10 30-0074 Login
150 mm 125 GC200F-15 30-0075 Login
3.0 1.62 0.69 ± 0.10 150 mm 55 GC300F-15 30-0083 Login
Composition 80.9% SiO2, 12.9% B2O3,
4.4% Na2O, 1.8% Al2O3
Softening Temp 815 °C
Dielectric Const 4.7
Tolerance (OD) ± 0.05 - 0.10 mm, depending on OD

 

OD
(mm)
ID
(mm)
Wall
Thickness
(mm)
Tolerance
(mm)
Length Qty/Pkg Model Order # Quick Add
to Order
1.0 0.50 0.25 ± 0.05 75 mm 500 GC100FS-7.5 30-0034 Login
100 mm 500 GC100FS-10 30-0032 Login
0.58 0.21 ± 0.05 75 mm 500 GC100F-7.5 30-0021 Login
100 mm 500 GC100F-10 30-0019 Login
150 mm 500 GC100F-15 30-0020 Login
1.2 0.69 0.26 ± 0.05 75 mm 350 GC120F-7.5 30-0046 Login
100 mm 350 GC120F-10 30-0044 Login
150 mm 350 GC120F-15 30-0045 Login
1.5 0.86 0.32 ± 0.05 75 mm 225 GC150F-7.5 30-0060 Login
100 mm 225 GC150F-10 30-0057 Login
150 mm 225 GC150F-15 30-0058 Login
2.0 1.16 0.42 ± 0.10 75 mm 125 GC200F-7.5 30-0076 Login
100 mm 125 GC200F-10 30-0074 Login
150 mm 125 GC200F-15 30-0075 Login
3.0 1.62 0.69 ± 0.10 150 mm 55 GC300F-15 30-0083 Login

 

References

References

  1. Pattern-Specific Synaptic Mechanisms in a Multifunctional Network. II. Intrinsic Modulation by Metabotropic Glutamate Receptors,
    Steven P. Lieske and Jan-Marino Ramirez,
    J Neurophysiol 95:1334-1344, 2006
  2. Norepinephrine Differentially Modulates Different Types of Respiratory Pacemaker and Nonpacemaker Neurons,
    Jean-Charles Viemari and Jan-Marino Ramirez,
    J Neurophysiol 95:2070-2082, 2006
  3. Electrogenic Na/HCO3 Cotransporter (NBCe1) in Xenopus Oocytes: Functional Comparison and Roles of the AminoVariants Expressed and Carboxy Termini,
    Suzanne D. McAlear, Xiaofen Liu, Jennifer B. Williams, Carmel M. McNicholas-Bevensee, and Mark O. Bevensee,
    The Rockefeller University Press, JGP, Volume 127, Number 6, 639-658, 2006
  4. Gasping Activity In Vitro: A Rhythm Dependent on 5-HT2A Receptors,
    Andrew K. Tryba, Fernando Pena, and Jan-Marino Ramirez,
    The Journal of Neuroscience, March 8, 2006 • 26(10):2623–2634 • 2623
  5. Amantadine Inhibits NMDA Receptors by Accelerating Channel Closure during Channel Block,
    Thomas A. Blanpied, Richard J. Clarke, and Jon W. Johnson,
    The Journal of Neuroscience, March 30, 2005, 25(13):3312-3322
  6. Sympathetic neural inhibition of conducted vasodilatation along hamster feed arteries: complementary effects of a1- and a2-adrenoreceptor activation,
    Sara J. Haug, Steven S. Segal,
    The Journal of Physiology Volume 563 Issue 2 Page 541-555, March 2005
  7. Postnatal Development Differentially Affects Voltage-Activated Calcium Currents in Respiratory Rhythmic Versus Nonrhythmic Neurons of the Pre-Bötzinger Complex,
    Frank P. Elsen1 and Jan-Marino Ramirez,
    J Neurophysiol 94: 1423-1431, 2005

Pricing Top Description

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

Order No. Model No. Product Description USA Price Order
1.0 mm OD - wall thickness 0.25 mm
30-0034 GC100FS-7.5 Standard wall, with filament, 1.0 x 75 mm (OD x L) Login Login
30-0032 GC100FS-10 Standard wall, with filament, 1.0 x 100 mm (OD x L) Login Login
1.0 mm OD - wall thickness 0.21 mm
30-0021 GC100F-7.5 Standard wall, with filament, 1.0 x 75 mm (OD x L) Login Login
30-0019 GC100F-10 Standard wall, with filament, 1.0 x 100 mm (OD x L) Login Login
30-0020 GC100F-15 Standard wall, with filament, 1.0 x 150 mm (OD x L) Login Login
1.2 mm OD - wall thickness 0.26 mm
30-0046 GC120F-7.5 Standard wall, with filament, 1.2 x 75 mm (OD x L) Login Login
30-0044 GC120F-10 Standard wall, with filament, 1.2 x 100 mm (OD x L) Login Login
30-0045 GC120F-15 Standard wall, with filament, 1.2 x 150 mm (OD x L) Login Login
1.5 mm OD - wall thickness 0.32 mm
30-0060 GC150F-7.5 Standard wall, with filament, 1.5 x 75 mm (OD x L) Login Login
30-0057 GC150F-10 Standard wall, with filament, 1.5 x 100 mm (OD x L) Login Login
30-0058 GC150F-15 Standard wall, with filament, 1.5 x 150 mm (OD x L) Login Login
2.0 mm OD - wall thickness 0.42 mm
30-0076 GC200F7.5 Standard wall, with filament, 2.0 x 75 mm (OD x L) Login Login
30-0074 GC200F-10 Standard wall, with filament, 2.0 x 100 mm (OD x L) Login Login
30-0075 GC200F-15 Standard wall, with filament, 2.0 x 150 mm (OD x L) Login Login
3.0 mm OD - wall thickness 0.69 mm
30-0083 GC300F-15 Standard wall, with filament, 3.0 x 150 mm (OD x L) Login Login

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