Concentric Electrodes

Microprobes for Life Science offers a variety of popular and fully-customizable concentric electrode designs to meet your research needs. The inner electrode features one of three available metals, and an outer electrode is made of stainless steel. Our CEA Tapered Tip models are precision ground to a pencil point for improve tissue penetration, while our NE Rhodes-Style Tip models feature cylindrical stepped tips to allow for carefully controlled contact surface areas.

The lengths of the different layers of the Rhodes-style electrodes can be customized to provide a great degree of control over probe surface area and impedance.

TAPERED TIP OPTIONS

CEA-200CEA-200-SSCEAX-200CEAX-200-SS

The CEA-200 tapered concentric electrode is ideal for localized stimulation or population recording in fixed preparations or acute animal experiments. They feature a long, fixed shaft that allows for easy gripping and manipulation, and a sharp durable tip capable of penetrating tough tissue.

Many features are fully customizable by special order, including shaft length, flexible wire length, connector type, and other features. Contact us to learn how our engineers can prepare an electrode ideal for your research.

CEA-200

Tip Specifications

CEA-200 Tip

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Tungsten CEA-200
ITEM Length (L) W (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide Price 5/Pkg Buy
WE3CEA3-200 3" 400 126 <300 2-3 Standard Yes $345.00
WE3CEA5-200 3" 505 218 <300 2-3 Standard Yes $345.00
WE5CEA5-200 5" 505 218 <300 2-3 Standard Yes $405.00
Stainless Steel CEA-200
ITEM Length (L) W (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide Price 5/Pkg Buy
SS3CEA4-200 3" 410 140 <300 2-3 Standard Yes $331.00
SS5CEA4-200 5" 410 140 <300 2-3 Standard Yes $387.00
Platinum Iridium CEA-200
ITEM Length (L) W (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide Price 5/Pkg Buy
PI2CEA3-200 2" 400 126 <300 2-3 Standard Yes $419.00
PI2CEA5-200 2" 505 218 <300 2-3 Standard Yes $419.00
PI2CEA10-200 2" 695 300 <400 3-4 Standard Yes $442.00

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The CEA-200-SS Concentric electrodes with exposed metal shield are excellent for shield macro recording of a large number of neural elements, nerves or neurons, simultaneously; as opposed to single unit recording that intended to record from one or just a few neural elements. The CEA-200-SS is ideal for chronic implantation.

Compared to the stepped "Rhodes" style tips of our NE and SNE Concentric models, the tips our CEA models are precision-ground to a sharp point.

CEA-200-SS

Tip Specifications

CEA-200-SS Tip

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Tungsten CEA-200-SS
ITEM Length (L) W (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide Price 5/Pkg Buy
WE3CEA3-200-SS 3" 350 126 <300 2-3 Standard Yes $328.00
WE3CEA5-200-SS 3" 450 218 <300 2-3 Standard Yes $328.00
WE5CEA5-200-SS 5" 450 218 <300 2-3 Standard Yes $391.00
Stainless Steel CEA-200-SS
ITEM Length (L) W (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide Price 5/Pkg Buy
SS3CEA4-200-SS 3" 350 140 <300 2-3 Standard Yes $313.00
SS5CEA4-200-SS 5" 350 140 <300 2-3 Standard Yes $374.00
Platinum Iridium CEA-200-SS
ITEM Length (L) W (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide Price 5/Pkg Buy
PI2CEA3-200-SS 2" 350 126 <400 2-3 Standard Yes $401.00
PI2CEA5-200-SS 2" 450 218 <400 2-3 Standard Yes $401.00
PI2CEA10-200-SS 2" 630 300 <400 3-4 Standard Yes $424.00

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The CEAX-200 features the same tip as our CEA-200 probe, but in a form factor appropriate for chronic implantation. The CEAX-200 has a much shorter length and includes a rigid removable extension rod that can be easily gripped and then clipped off after the headcap is hardened to create a low-profile implant.

As in the CEA-200, many features are fully customizable by special order, including shaft length, flexible wire lengths, connector types, extension rod length, and other features.

CEAX-200

Tip Specifications

CEAX-200 Tip

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Tungsten Concentric Bipolar Electrodes with Extension CEAX-200
ITEM S (mm) W (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
WECEAX3-200 10 400 126 <300 2-3 Standard Yes 50 $453.00
WECEAX5-200 10 505 126 <300 2-3 Standard Yes 50 $453.00
Stainless Steel Concentric Bipolar Electrodes with Extension CEAX-200
ITEM S (mm) W (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
SSCEAX4-200 10 400 126 <300 2-3 Standard Yes 50 $441.00
Platinum Iridium Concentric Bipolar Electrodes with Extension CEAX-200
ITEM S (mm) W (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
PICEAX3-200 10 400 126 <300 2-3 Standard Yes 50 $545.00
PICEAX5-200 10 505 218 <300 2-3 Standard Yes 50 $545.00
PICEAX10-200 10 695 300 <400 3-5 Standard Yes 50 $569.00

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The CEAX-200-SS Concentric electrodes with exposed metal shield are excellent for shield macro recording of a large number of neural elements, nerves or neurons, simultaneously; as opposed to single unit recording that intended to record from one or just a few neural elements. The CEAX-200-SS is ideal for chronic implantation.

The Stainless Steel external tubing (E) provides support for accurate placement. The extra extension may be cut off after insertion, leaving only a small protrusion.

Compared to the stepped "Rhodes" style tips of our NE and SNE Concentric models, the tips our CEA models are precision-ground to a sharp point.

CEAX-200-SS

Tip Specifications

CEAX-200-SS Tip

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Tungsten Concentric Bipolar Electrodes with Extension CEAX-200-SS
ITEM S (mm) W (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
WECEAX3-200-SS 10 350 126 <300 2-3 Standard Yes 50 $435.00
WECEAX5-200-SS 10 450 126 <300 2-3 Standard Yes 50 $435.00
Stainless Steel Concentric Bipolar Electrodes with Extension CEAX-200-SS
ITEM S (mm) W (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
SSCEAX4-200-SS 10 350 126 <300 2-3 Standard Yes 50 $423.00
Platinum Iridium Concentric Bipolar Electrodes with Extension CEAX-200-SS
ITEM S (mm) W (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
PICEAX3-200-SS 10 350 126 <400 2-3 Standard Yes 50 $521.00
PICEAX5-200-SS 10 450 218 <400 2-3 Standard Yes 50 $521.00
PICEAX10-200-SS 10 630 300 <400 3-5 Standard Yes 50 $551.00

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RHODES TIP OPTIONS

NE-100NEX-100SNE-100SNEX-100

The NE-100 is designed to replicate the Peter Rhodes-produced NE-100 concentric, and features the same length, thickness, and tip dimensions. These probes feature a stepped tip with well-defined element lengths, allowing surface area to be easily determined for charge density calculations. As in the CEA-200, the NE-100 is ideal for localized stimulation or population recording in fixed preparations for acute animal experiments.

Many features are fully customizable by special order, including shaft length, flexible wire length, connector type, and other features. Contact us to learn how our engineers can prepare an electrode ideal for your research.

NE-100

Tip Specifications

NE-100 Tip

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Stainless Steel NE-100
ITEM S (mm) Z (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
SS-NE-100 80 625 305 500 225 Rhodes Yes 30 $298.00
Platinum Iridium NE-100
ITEM S (mm) Z (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
PI-NE-100 80 625 305 500 225 Rhodes Yes 30 $413.00

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The NEX-100 features the same tip as our NE-100 probe, but in a form factor appropriate for chronic implantation.

The NEX-100 is designed to replicate the Peter Rhodes-produced NEX-100 concentric, and features the same length, thickness, and tip dimensions. The NEX-100 features the same tip as our NE-100 probe, but in a form factor appropriate for chronic implantation. The NEX-100 has a much shorter length and includes a rigid removable extension rod that can be easily gripped and then clipped off after the headcap is hardened to create a low-profile implant.

As in the NE-100, many features are fully customizable by special order, including shaft length, flexible wire lengths, connector types, extension rod length, and other features.

NEX-100

Tip Specifications

NEX-100

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Stainless Steel NEX-100
Concentric Bipolar Electrodes with Extension
ITEM S (mm) Z (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
SS-NEX-100 10 625 305 500 225 Rhodes Yes 50 $453.00
Platinum Iridium NEX-100
Concentric Bipolar Electrodes with Extension
ITEM S (mm) Z (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
PI-NEX-100 80 625 305 500 225 Rhodes Yes 50 $573.00

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The SNE-100 is designed to replicate the Peter Rhodes-produced SNE-100 semi-micro concentric, and features the same length, thickness, and tip dimensions. These probes feature a stepped tip with well-defined element lengths, allowing surface area to be easily determined for charge density calculations. Featuring a shaft diameter considerably thinner than the NE-100, the SNE-100 is ideal for localized stimulation or population recording in fixed preparations and acute animal experiments where implant size is a critical concern.

Many features are fully customizable by special order, including shaft length, flexible wire length, connector type, and other features. Contact us to learn how our engineers can prepare an electrode ideal for your research.

SNE-100

Tip Specifications

SNE-100

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Stainless Steel SNE-100
ITEM S (mm) Z (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
SS-SNE-100 80 411 140 250 100 Rhodes Yes 30 $298.00
Platinum Iridium SNE-100
ITEM S (mm) Z (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
PI-SNE-100 80 411 140 250 100 Rhodes Yes 30 $413.00

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The SNEX-100 is designed to replicate the Peter Rhodes-produced SNEX-100 concentric, and features the same length, thickness, and tip dimensions. The SNEX-100 features the same tip as our SNE-100 probe, but in a form factor appropriate for chronic implantation. The SNEX-100 has a much shorter length and includes a rigid removable extension rod that can be easily gripped and then clipped off after the headcap is hardened to create a low-profile implant. Featuring a shaft diameter considerably thinner than the NEX-100, the SNEX-100 is ideal for chronic implantation into targets where implant size is a critical concern.

As in the SNE-100, many features are fully customizable by special order, including shaft length, flexible wire lengths, connector types, extension rod length, and other features.

SNEX-100

Tip Specifications

SNEX-100

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Stainless Steel SNEX-100
Concentric Bipolar Electrodes with Extension
ITEM S (mm) Z (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
SS-SNEX-100 10 411 140 250 100 Rhodes Yes 50 $453.00
Platinum Iridium SNEX-100
Concentric Bipolar Electrodes with Extension
ITEM S (mm) Z (µm) X (µm) Y (µm) Tip Diameter (µm) Tip Profile Outer Polyimide E (mm) Price 5/Pkg Buy
PI-SNEX-100 10 411 140 250 100 Rhodes Yes 50 $573.00

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