Sensors 2012, 12(6), 7669-7681; doi:10.3390/s120607669
Article

Multichannel Boron Doped Nanocrystalline Diamond Ultramicroelectrode Arrays: Design, Fabrication and Characterization

1 CEA-LIST, Diamond Sensors Laboratory, Gif-sur-Yvette 91191, France 2 Université Paris Est, ESYCOM EA2552, ESIEE Cité Descartes, BP99, Noisy Le Grand 93162, France 3 Institut des Neurosciences Cognitives et Intégratives d’Aquitaine (INCIA), Université de Bordeaux, UMR 5287, Bordeaux 33000, France 4 INSERM, U968, Institut de la Vision, Paris 75012, France 5 UPMC, Institut de la Vision, Université Paris 06, UMR_S968, Paris 75012, France 6 CEA-LITEN-DTS, Laboratoire de Stockage de l’Electricité, Le Bourget du Lac 73377, France
* Author to whom correspondence should be addressed.
Received: 24 April 2012; in revised form: 23 May 2012 / Accepted: 4 June 2012 / Published: 7 June 2012
(This article belongs to the Section Biosensors)
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Abstract: We report on the fabrication and characterization of an 8 × 8 multichannel Boron Doped Diamond (BDD) ultramicro-electrode array (UMEA). The device combines both the assets of microelectrodes, resulting from conditions in mass transport from the bulk solution toward the electrode, and of BDD’s remarkable intrinsic electrochemical properties. The UMEAs were fabricated using an original approach relying on the selective growth of diamond over pre-processed 4 inches silicon substrates. The prepared UMEAs were characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The results demonstrated that the electrodes have exhibited a very fast electrode transfer rate (k0) up to 0.05 cm∙s−1 (in a fast redox couple) and on average, a steady state limiting current (in a 0.5 M potassium chloride aqueous solution containing 1 mM Fe(CN)64− ion at 100 mV∙s−1) of 1.8 nA. The UMEAs are targeted for electrophysiological as well as analytical applications.
Keywords: ultramicroelectrode; boron doped diamond; electrochemical impedance spectroscopy; biosensor array; statistical study of microelectrode arrays

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MDPI and ACS Style

Kiran, R.; Rousseau, L.; Lissorgues, G.; Scorsone, E.; Bongrain, A.; Yvert, B.; Picaud, S.; Mailley, P.; Bergonzo, P. Multichannel Boron Doped Nanocrystalline Diamond Ultramicroelectrode Arrays: Design, Fabrication and Characterization. Sensors 2012, 12, 7669-7681.

AMA Style

Kiran R, Rousseau L, Lissorgues G, Scorsone E, Bongrain A, Yvert B, Picaud S, Mailley P, Bergonzo P. Multichannel Boron Doped Nanocrystalline Diamond Ultramicroelectrode Arrays: Design, Fabrication and Characterization. Sensors. 2012; 12(6):7669-7681.

Chicago/Turabian Style

Kiran, Raphael; Rousseau, Lionel; Lissorgues, Gaëlle; Scorsone, Emmanuel; Bongrain, Alexandre; Yvert, Blaise; Picaud, Serge; Mailley, Pascal; Bergonzo, Philippe. 2012. "Multichannel Boron Doped Nanocrystalline Diamond Ultramicroelectrode Arrays: Design, Fabrication and Characterization." Sensors 12, no. 6: 7669-7681.

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