Electrochemical Sensors
Microfluidic chip - electrochemical detection

MicruX develops metal-based (micro)electrodes fabricated by thin-film technologies on a glass substrate. A SU-8 resin protective layer is used to delimit the electrochemical cell enabling the use of very small sample volume. As well, the SU-8 layer enables the integration of a microfluidic stage with the electrochemcial sensors.

The electrochemical sensors show excelent features for electroanalytical applications, including the development of (bio)sensors.

Electrochemical Sensors» Electrochemical sensor general features: External dimensions: 10 x 6 x 0.75 mm
Electrodes substrate: Glass
Protective layer: SU-8 resin
Electrochemical cell: 2 or 3.5 mm Ø
Sample volume: 1 - 10 µL
Electrode material: Platinum or Gold

Low-cost, reusable electrochemical sensors are manufactured in different designs:

» THIN-FILM SINGLE ELECTRODES

» THIN-FILM MICROELECTRODE ARRAY

» THIN-FILM INTERDIGITATED ELECTRODES

» THIN-FILM INTERDIGITATED ARRAY MICROELECTRODES

» THIN-FILM INTERDIGITATED RING ARRAY

» ON-DEMAND & CUSTOMIZED THIN-FILM ELECTROCHEMICAL SENSORS NEW!!!

» THIN-LAYER MICROFLUIDIC ELECTROCHEMICAL SENSORS NEW!!!

» ON-DEMAND & CUSTOMIZED MICROFLUIDIC ELECTROCHEMICAL SENSORS NEW!!!

 

» THIN-FILM SINGLE ELECTRODES (SE)

Electrochemical sensors SE are based on a three-electrode (working, reference and auxiliary) approach integrated on a 2 mm diameter cell. The three electrodes are fabricated in the same material (platinum or gold).

Electrochemical sensor SE» Ref. ED-SE1-Pt 150 nm thin-film platinum electrodes
Working electrode (WE): 1 mm Ø (0.8 mm2)

» Ref. ED-SE1-Au 150 nm thin-film gold electrodes
Working electrode (WE): 1 mm Ø (0.8 mm2)

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Electrochemical sensors SE are also available combining two different metal electrodes (gold working electrode and platinum reference/auxiliary electrodes) in the same electrochemical cell.

Electrochemical sensor SE» Ref. ED-SE1-AuPtElectrochemical cell: 2 mm Ø
Working electrode (WE): 1 mm Ø (0.8 mm2)
WE: 150 nm thin-film gold electrode
RE / AE: 150 nm thin-film platinum electrodes

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Other single- and multi-electrode chips, integrating one or more working electrodes (WE) as well as reference (RE) and auxiliary (AE) electrodes, are also available on demand [+].

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» THIN-FILM MICROELECTRODE ARRAY (MEA)

The electrochemical MEA sensors are based on a three-electrodes (working, reference and auxiliary) approach. The working electrode (1 mm diameter) consists of a metal surface (platinum or gold) coated with SU-8 resin in which is defined different microholes array with a honeycomb structure.

Thin-film Platinum MEA» Ref. ED-mSE-10-Pt150 nm thin-film platinum electrodes
Electrochemical cell: 2 mm Ø
Working electrode: 10-µm diameter microholes
Number of microholes: 90 pinholes
Microholes pitch: 100 µm

Thin-film Platinum MEA» Ref. ED-mSE-5-Pt150 nm thin-film platinum electrodes
Electrochemical cell: 2 mm Ø
Working electrode: 5-µm diameter microholes
Number of microholes: 500 pinholes
Microholes pitch: 50 µm

Thin-film Gold MEA» Ref. ED-mSE-10-Au150 nm thin-film gold electrodes
Electrochemical cell: 2 mm Ø
Working electrode: 10-µm diameter microholes
Number of microholes: 90 pinholes
Microholes pitch: 100 µm

Thin-film Gold MEA» Ref. ED-mSE-5-Au150 nm thin-film gold electrodes
Electrochemical cell: 2 mm Ø
Working electrode: 5-µm diameter microholes
Number of microholes: 500 pinholes
Microholes pitch: 50 µm

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Other microelectrode arrays, including different individually addressable multi-electrode array (iMEA) systems, are also available on demand [+].

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» THIN-FILM INTERDIGITATED ELECTRODES (IDE)

Thin-film technologies enable the fabrication of microelectrodes (<25 µm) with high resolution and precision. The interdigitated electrodes (IDE) provide a suitable tool specially useful for impedance, capacitance and conductivity measurements as well as fuel cells.

The most basic InterDigitated Electrodes (IDE) consist of two individually addressable microelectrode array strips with an interdigitated approach. Non additional reference and auxiliary electrodes are included on the device. The microelectrodes are available in different sizes and materials.

Thin-film Platinum IDE» Ref. ED-IDE1-Pt150 nm thin-film platinum microelectrodes
Electrochemical cell: 3.5 mm Ø
Microelectrodes width: 10 µm
Number of fingers: 90 pairs
Microelectrodes gap: 10 µm

Thin-film Platinum IDE» Ref. ED-IDE2-Pt150 nm thin-film platinum microelectrodes
Electrochemical cell: 3.5 mm Ø
Microelectrodes width: 10 µm
Number of fingers: 120 pairs
Microelectrodes gap: 5 µm

Thin-film Platinum IDE» Ref. ED-IDE3-Pt150 nm thin-film platinum microelectrodes
Electrochemical cell: 3.5 mm Ø
Microelectrodes width: 5 µm
Number of fingers: 180 pairs
Microelectrodes gap: 5 µm

Thin-film Gold IDE» Ref. ED-IDE1-Au150 nm thin-film gold microelectrodes
Electrochemical cell: 3.5 mm Ø
Microelectrodes width: 10 µm
Number of fingers: 90 pairs
Microelectrodes gap: 10 µm

Thin-film Gold IDE» Ref. ED-IDE2-Au150 nm thin-film gold microelectrodes
Electrochemical cell: 3.5 mm Ø
Microelectrodes width: 10 µm
Number of fingers: 120 pairs
Microelectrodes gap: 5 µm

Thin-film Gold IDE» Ref. ED-IDE3-Au150 nm thin-film gold microelectrodes
Electrochemical cell: 3.5 mm Ø
Microelectrodes width: 5 µm
Number of fingers: 180 pairs
Microelectrodes gap: 5 µm

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Other interdigitated lineal electrode approaches, including multi-interdigitated systems, are also available on demand [+].

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» THIN-FILM INTERDIGITATED ARRAY MICROELECTRODES (IDA)

Thin-film technologies also enable the manufacture of microelectrodes (<25 µm) and the integration of additional reference and auxiliary electrodes in the same device with high resolution and precision. Interdigitated array (IDA) electrodes take advantages of the microelectrodes features enhancing the sensitivity and detection limits.

The working electrode consists of two individually addressable arrays of microelectrodes with an interdigitated approach. The microelectrodes are available in different sizes and materials.

Thin-film Platinum IDA» Ref. ED-IDA1-Pt150 nm thin-film platinum electrodes
Electrochemical cell: 2 mm Ø
Working electrode: two 10-µm microelectrode arrays
Number of fingers: 15 pairs
Microelectrodes gap: 10 µm

Thin-film Gold IDA» Ref. ED-IDA1-Au150 nm thin-film gold electrodes
Electrochemical cell: 2 mm Ø
Working electrode: two 10-µm microelectrode arrays
Number of fingers: 15 pairs
Microelectrodes gap: 10 µm

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Thin-film Platinum IDA» Ref. ED-IDA5-Pt 150 nm thin-film platinum electrodes
Electrochemical cell: 2 mm Ø
Working electrode: two 10-µm microelectrode arrays
Number of fingers: 20 pairs
Microelectrodes gap: 5 µm

Thin-film Platinum IDA» Ref. ED-IDA6-Pt150 nm thin-film platinum electrodes
Electrochemical cell: 2 mm Ø
Working electrode: two 5-µm microelectrode arrays
Number of fingers: 30 pairs
Microelectrodes gap: 5 µm

Thin-film Gold IDA» Ref. ED-IDA5-Au 150 nm thin-film gold electrodes
Electrochemical cell: 2 mm Ø
Working electrode: two 10-µm microelectrode arrays
Number of fingers: 20 pairs
Microelectrodes gap: 5 µm

Thin-film Gold IDA» Ref. ED-IDA6-Au150 nm thin-film gold electrodes
Electrochemical cell: 2 mm Ø
Working electrode: two 5-µm microelectrode arrays
Number of fingers: 30 pairs
Microelectrodes gap: 5 µm

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Other interdigitated lineal electrode approaches, including multi-interdigitated systems, are also available on demand [+].

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» THIN-FILM INTERDIGITATED RING ARRAY (IDRA)

Thin-film technologies open the gate to develop special microelectrodes designs. Interdigitated ring array (IDRA) electrodes bring a radial design specially focused on flow systems.

The working electrode consists of two radial arrays of microelectrodes with an interdigitated approach. The microelectrodes are available in different sizes and materials.

Thin-film Platinum IDRA» Ref. ED-IDRA1-Pt150 nm thin-film platinum electrodes
Electrochemical cell: 2 mm Ø
Working electrode: two concentric 10-µm microelectrode arrays
Number of fingers: 12 pairs
Microelectrodes gap: 10 µm

Thin-film Gold IDRA» Ref. ED-IDRA1-Au150 nm thin-film gold electrodes
Electrochemical cell: 2 mm Ø
Working electrode: two concentric 10-µm microelectrode arrays
Number of fingers: 12 pairs
Microelectrodes gap: 10 µm

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Other basic and multiple interdigitated ring electrode approaches are also available on demand [+].

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» ON-DEMAND & CUSTOMIZED THIN-FILM ELECTROCHEMICAL SENSORS NEW

Thin-film technologies enable the manufacture of a wide variety of electrochemical sensors with multiple analytical applications. MicruX is able to manufacture off–the–shelf metal-based thin-film (micro)electrodes as well as other pre-designed sensors on-demand [+].

On-demand SensorsPre-designed sensors on-demand include [+]:
» Basic Single- & Multi-Electrode Systems.
» Basic InterDigitated Lineal & Ring Electrodes.
» Dual InterDigitated Lineal & Ring Electrodes.
» Individually Addressable MicroElectrode Arrays.
» Multiple Single- & InterDigitated Electrodes Chips.

On-demand sensors are just manufactured under previous request. Delivery time for these sensors is about 7-8 weeks depending on the workload.

On-demand sensors »

Moreover, thin-film technologies open the gate to the manufacture of other different customized (micro)electrode designs with a low-cost, high precision and resolution. Thus, other chips including multiple single-electrodes or interdigitated electrodes (lineal or ring) can be also accomplished, fulfilling the specific requirements of customers.

Customized sensors »

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» THIN-LAYER MICROFLUIDIC ELECTROCHEMICAL SENSORS NEW

Thin-film technologies enable the integration of microfluidics and electrochemical sensors in a small single device. A basic microfluidic structure (single-channel) is included in the SU-8 layer on a glass substrate containing the metal-based (micro)electrodes.

Different single-electrodes (SE) or interdigitated array (IDA) microelectrodes are integrated on the microfluidic structure on-chip. Integrated thin-layer hybrid SU-8/Glass chips offer a suitable solution for flow injection analysis (FIA) systems.

Microfluidic SE sensor» Ref. TL-SE1-Pt150 nm thin-film platinum electrodes
Channel width: 250 µm / 1 mm (EC cell)
Channel height: 40 µm
Channel volume: 55 nL
Inlet / outlet: 0.7 mm Ø
Working electrode area: 0.3 mm2

Microfluidic IDA sensor» Ref. TL-IDA1-Pt150 nm thin-film platinum electrodes
Channel width: 250 µm / 1 mm (EC cell)
Channel height: 40 µm
Channel volume: 55 nL
Inlet / outlet: 0.7 mm Ø
Working electrode: two 10-µm microelectrode arrays
Number of fingers: 15 pairs
Microelectrodes gap: 10 µm

Microfluidic IDA sensor» Ref. TL-IDA5-Pt150 nm thin-film platinum electrodes
Channel width: 250 µm / 1 mm (EC cell)
Channel height: 40 µm
Channel volume: 55 nL
Inlet / outlet: 0.7 mm Ø
Working electrode: two 5-µm microelectrode arrays
Number of fingers: 30 pairs
Microelectrodes gap: 5 µm

Microfluidic SE sensor» Ref. TL-SE1-Au150 nm thin-film gold electrodes
Channel width: 250 µm / 1 mm (EC cell)
Channel height: 40 µm
Channel volume: 55 nL
Inlet / outlet: 0.7 mm Ø
Working electrode area: 0.3 mm2

Microfluidic IDA sensor» Ref. TL-IDA1-Au150 nm thin-film gold electrodes
Channel width: 250 µm / 1 mm (EC cell)
Channel height: 40 µm
Channel volume: 55 nL
Inlet / outlet: 0.7 mm Ø
Working electrode: two 10-µm microelectrode arrays
Number of fingers: 15 pairs
Microelectrodes gap: 10 µm

Microfluidic IDA sensor» Ref. TL-IDA5-Au150 nm thin-film gold electrodes
Channel width: 250 µm / 1 mm (EC cell)
Channel height: 40 µm
Channel volume: 55 nL
Inlet / outlet: 0.7 mm Ø
Working electrode: two 5-µm microelectrode arrays
Number of fingers: 30 pairs
Microelectrodes gap: 5 µm

Download brochure »

Other microfluidic electrochemical sensors for mixing or multiplexed sensing are also available on demand [+].

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» ON-DEMAND & CUSTOMIZED MICROFLUIDIC ELECTROCHEMICAL SENSORS NEW

MicruX is able to manufacture off–the–shelf microfluidic devices with integrated metal-based thin-film (micro)electrodes as well as other pre-designed microfluidic sensors on-demand. Different integrated microfluidic structures can be easily manufactured on-chip for multiple analytical applications.

On-demand SensorsPre-designed microfluidic sensors on-demand include:
» Basic Microfluidic Single Sensors.
» Microfluidic Mixer Chips.
» Microfluidic Splitter Chips for multiplexed sensing.
» Microfluidic Multi-splitter Chips for multiplexed sensing.

On-demand microfluidic sensors are just manufactured under previous request. Delivery time for these microfluidic chips is about 7-8 weeks depending on the workload.

On-demand sensors »

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News & Events
June 12, 2017
New Products: External Electrodes & Platform [+].
April 10, 2017
microTAS 2017 - Get a Free Full Registration!!! [+].
March 13, 2017
Updated MicruX' Catalogue 2017 [+].
March 01, 2017
Events: First European BioSensor Symposium (Potsdam, Germany, 20 - 23 March 2017) [+].
February 06, 2017
Microfluidic Lab Practice Packs - Special Offers [+].
January 30, 2017
New available position: International Sales Technician [+].
January 23, 2017
New available position: Electronic Engineer [+].
September 26, 2016
Events: MicroTAS 2016 (Dublin, Ireland, 9 - 13 October 2016) [+].
September 13, 2016
Events: PRiME 2016 (Honolulu, Hawaii, USA, 2 - 7 October 2016) [+].
July 18, 2016
Events: 67th Annual Meeting of ISE (The Hague, The Netherlands, 21 - 26 August 2016) [+].
» Previous news [+]
Download Catalogue
Online Catalogue
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Floor -1, Room 4 & 6. Julián Clavería s/n
33006, Oviedo (Asturias) SPAIN
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