Tungsten microelectrodes

Tunglass-1 glass-insulated tungsten microelectrode for extracellular recording

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Manufactured using Kation Scientific’s unique micropipette puller, the Gravipull-3, this glass insulated tungsten microelectrode represents a truly exceptional solution to many drawbacks associated with more traditional metal microelectrodes.

The industry standard gold-plated pin on top allows a low-resistance galvanic connection to most headstage probes. The 1.5 mm outer diameter borosilicate glass sheathing provides an additional support for the fine tungsten wire and allows a convenient way to handle and to attach this microelectrode to any holder.

Next to the holder section, the glass forms a 40 μm thick electrically insulating layer sturdily adhering to the lead element tungsten wire for about a length of 35 mm.
Finally, the glass insulation tapers onto the tungsten tip, etched to 10 to 12° fine angle, ending in a circa 3 μm thick durable glass ridge.

True pin-hole free insulation

Mating female pin is provided

Autoclavable to 140 °C

Sold in box of 7 or box of 20 electrodes.

If you need to use our glass insulated tungsten microelectrodes with headstages other than Kation's M2111, please see our EA1010 adaptor for possible mounting solution.

  • Tunglass-1 Glass insulated microelectrode for extracellular recording
  • SEM image of the tip