Platinum/Iridium Metal Micro Electrodes

Platinum/Iridium Metal Micro Electrodes

The platinum/iridium mix electrodes have a lower concomitant impedance value than tungsten or stainless steel for the same exposure, therefore they are ideal for recording. They are also superior for stimulation studies because they are less likely to erode during intense stimulation protocols. This metal mixture is also excellent for chronic implants because it is very biocompatible. Available in two styles: Standard style with 3 mm or 1 mm of Parylene-C insulation on the metal shaft. Standard style with the addition of polymide tubing on the shaft which provides additional reinforcement for easy electrode insertion. The additional insulation also minimizes signal attenuation making this an ideal electrode for deep brain penetrations. All of the microelectrodes are sharpened electrochemically and their tips are individually exposed under a microscope. Each is inspected to assure reproducible tip exposures and profile.

Item# Description U.S. List Price Quantity
72-0408 Platinum/20% Iridium Metal Micro Electrode, Additional Polymide, 51 mm (2 in) long, Tip Impedence 2 MΩ, pkg. of 10
72-0409 Platinum/20% Iridium Metal Micro Electrode, Additional Polymide, 51 mm (2 in) long, Tip Impedence 1 MΩ, pkg. of 10
72-0410 Platinum/20% Iridium Metal Micro Electrode, Parylene Coated, 51 mm (2 in) long, Tip Impedence 2 MΩ, pkg. of 10
72-0411 Platinum/20% Iridium Metal Micro Electrode, Parylene Coated, 51 mm (2 in) long, Tip Impedence 1 MΩ, pkg. of 10
72-0412 Platinum/20% Iridium Metal Micro Electrode, Parylene Coated, 51 mm (2 in) long, Tip Impedence 0.5 MΩ, pkg. of 10
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The platinum/iridium mix electrodes have a lower concomitant impedance value than tungsten or stainless steel for the same exposure, therefore they are ideal for recording. They are also superior for stimulation studies because they are less likely to erode during intense stimulation protocols. This metal mixture is also excellent for chronic implants because it is very biocompatible.

  • Outstanding for extracellular recording and micro-stimulation
  • Unique, precision manufacturing process provides consistent repeatable tip profiles for superior performance
  • Select from 4 metals, 3 styles, and 4 tip profiles to meet almost any application
  • Gold-plated connector pins for superior electrical connections
  • Custom made probes readily available

Available in two styles:

  • Standard style with 3 mm or 1 mm of Parylene-C insulation on the metal shaft. 
  • Standard style with the addition of polymide tubing on the shaft which provides additional reinforcement for easy electrode insertion. The additional insulation also minimizes signal attenuation making this an ideal electrode for deep brain penetrations. All of the microelectrodes are sharpened electrochemically and their tips are individually exposed under a microscope. Each is inspected to assure reproducible tip exposures and profile.
Specifications72-040872-040972-041072-041172-0412
Electrode StyleAdditional PolymideAdditional PolymideParylene CoatedParylene CoatedParylene Coated
Insulation Thickness3 3 3 3 3
Length (English)2 in2 in2 in2 in2 in
Length (Metric)51 mm51 mm51 mm51 mm51 mm
Shaft Diameter127 127 127 127 127
Tip Impedance2 MΩ1 MΩ2 MΩ1 MΩ0.5 MΩ
Tip ProfileGeneralGeneralGeneralGeneralGeneral
Type of MetalPlatinum/20% IridiumPlatinum/20% IridiumPlatinum/20% IridiumPlatinum/20% IridiumPlatinum/20% Iridium