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Dr Gary Lawrence, Dublin City University

WPI are my preferred supplier for tissue and cell recording instrumentation. In my experience, WPI representatives have an excellent level of technical expertise and they have always responded in a timely manner with the most helpful, patient and instructive advice to aid the development of the o...
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Home > Products > Amplifiers > Accessories > Metal Microelectrodes > Monopolar Electrodes > Platinum Iridium Microelectrodes

Platinum Iridium Microelectrodes

Platinum-Iridium alloy is considered by many to be the “gold standard” for chronic recording and microstimulation due to its excellent electrochemical and mechanical characteristics.

Advantages

Platinum-iridium possesses lower concomitant impedance, higher charge transfer capacity, and improved electrochemical stability compared to tungsten and stainless steel.
Offers excellent and versatile microstimulation performance, allowing safe stimulation to be performed with small probe sizes.
Iridium content of alloy greatly improves mechanical hardness and stiffness, providing electrodes with a degree of bend resistance that approaches tungsten.

Disadvantages

Greater cost than tungsten and stainless steel, making it less appropriate for acute recording or non-intensive chronic recording.
Can be vulnerable to corrosion and dissolution with some intensive stimulation protocols.

	A - STANDARD TIP PROFILE Our standard tip profile features a sharp yet robust point that offers versatile performance and an effective balance between penetration and durability.
	B - BLUNTED TIP PROFILE Our blunted electrodes are engineered to have a more rounded, bullet-shaped tip. For many applications the blunted tip can offer superior stimulation performance.
	H - HEAT TREATED TAPERED TIP PROFILE Our heat-treated electrodes are intended for those investigators who must penetrate their probes through tough membranes, such as the dura mater of larger mammals.
	F - EXTRA FINE TIP PROFILE Our extra-fine tip profile features a significantly sharper taper as well as a thinner insulation layer.