Metal Microelectrodes
More Images
Catalog Number: UE
The most comprehensive source for single and multi-unit recording/microstimulating extracellular electrodes. Etched on micron or less tips are the best way to sample cell activity with minimal tissue trauma.
As the first company to offer specified tip profiles and final tip taper angles as well as selectable impedance values, FHC is in the unique position to offer standard or custom configurations for virtually all research and clinical brain and nerve recording requirements.
We provide Metal Microelectrodes for a wide range of extracellular recording and stimulating applications. We provide multiple configurations for maximum customization. We will build electrodes to your specifications: material selection, tip shape, impedance, and insulation.
Standard metal monopolar microelectrodes are available in Tungsten, Stainless Steel, and Platinum in thicknesses of 75-100μm (.003"-.020").
- Tungsten- the strongest of the three, facilitates sharp etching, maintains exceptional tip integrity during insertion, and is available with glass insulation;
- Stainless Steel- affordable, strong, and allows a researcher to make iron deposits on tissue;
- Platinum Iridium- this option has a higher activation level, which causes it to deteriorate slower under current. Platinum iririum is less toxic in chronic applications.
We offer custom tip profiles, shank modifications, termination, and insulation options.
Catalog Number: UE1234567890
Metal microelectrodes are specified using a configuration of twelve alphanumeric (letters and/or numbers) characters. "UE" denotes metal microelectrode, followed by ten specifiers ("1-0").
1 Material
W: Tungsten
S: Stainless Steel
P: Platinum/Iridium (80%/20%)
X: Special/Specify
2 Length Range
Total electrode length will be range maximum (+/- 5mm) plus termination addition unless length is specified in step 9.
S: = up to 60mm
M: = 61mm to 70mm
L: = 71mm to 145mm
V: = 146mm to 295mm
3 Shank Diameter
C: .003" / 75μm
D: .004" / 100μm
E: .005" / 125μm
F: .008" / 200μm
G: .010" / 250μm
H: .020" / 500μm
X: Special/Specify
4 Final Taper Angle
A: Extra Blunt
B: Rounded Extra Blunt
C: Standard Blunt
D: Rounded Blunt
E: Standard Medium
F: Rounded Medium
G: Standard Fine
H: Rounded Fine
J: Standard Ultra-Fine
K: Rounded Ultra-Fine
(Note: Fine and Ultra-fine tapers are not available with Glassed Tungsten)
X: Special/Specify
5 Microelectrode Profile
S: Standard Profile
V: Short Convex
C: Short Concave
T: Short Thinned
L: Long Thinned
(Note: Profiles T & L are not available with Glass Insulation)
X: Special/Specify
6 Insulation Options
E: Epoxylite Insulation
M: 'Max dips' Epoxylite
G: Glass, immersed tip (Pt/Ir or W, only). Standard Insulation Length: 15mm from tip.
S: Glass, exposed tip (Pt/Ir, only). Standard Insulation Length: 15mm from tip.
N: No Insulation
X: Special/Specify
7 Impedance
A: 50kΩ - 100kΩ
B: 300kΩ - 500kΩ
C: 800kΩ - 1.2MΩ
D: 2MΩ - 4MΩ
E: 5MΩ - 7MΩ
F: 8MΩ - 10MΩ
G: 13MΩ - 15MΩ
H: 18MΩ - 20MΩ
J: 22MΩ - 25MΩ
K: 2MΩ - 5MΩ
L: 9MΩ - 12MΩ
N: No Zap (high)
1: 1MΩ ± .2MΩ
2: 2MΩ ± .4MΩ
3: 3MΩ ± .6MΩ
4: 4MΩ ± .8MΩ
5: 5MΩ ± 1MΩ
6: 6MΩ ± 1MΩ
7: 7MΩ ± 1MΩ
8: 8MΩ ± 1MΩ
9: 9MΩ ± 1MΩ
0: 10MΩ ± 1MΩ
X: Special/Specify
8 Tip Conditioning
N: None, Standard
P: Platinum Black after setting impedance
T: Platinum Black with a final impedance specified
X: Special/Specify
9 Shank Modifications
N: None, standard
1: Cut electrode to a specified length ± 2mm, (specify electrode length in mm). NOTE: If pin termination is specified in 10, total electrode length will be specified length + pin addition.
2: Heatshrink over termination.
3: Shank Enlargement with Polyimide and Stainless Steel Tubing.
4: Shank Enlargement with Polimide Tubing Only.
5: Shank Extension up to 150mm
6: Shank Extension from 151mm to 300mm
X: Special/Specify
10 Termination Options
Special terminations available upon request, see Microneurography Needle data sheet for additional options, specify x
D: No pin, Insulation not stripped
E: No pin, Insulation stripped 5mm
G: No pin, Insulation stripped 10mm
H: No pin, Insulation stripped 15mm
J: No pin, Insulation stirpped 20mm
M: Male 220-P02 (Standard)
F: Female 220-S02
C: Chronic termination
L: Floating termination
X: Special (not listed)
