Heim M., Yvert B., Kuhn A.,
J. Physiology - Paris 2012, 106, 137-145.

Microelectrode arrays (MEAs) are widely used tools for recording and stimulating extracellular neuronal activity. Major limitations when decreasing electrode size in dense arrays are increased noise level and low charge injection capability. Nanostructuration of the electrode sites on MEAs presents an efficient way to overcome these problems by decreasing the impedance of the electrode/solution interface. Here, we review different techniques used to achieve this goal including template assisted electrodeposition for generating macro- and mesoporous films, immobilization of carbon nanotubes (CNTs) and deposition of conducting polymers onto microelectrodes. When tested during in vitro and in vivo measurements, nanostructured MEAs display improved sensitivity during recording of neuronal activity together with a higher efficiency in the stimulation process compared to conventional microelectrodes.

 

JPhysParis2012 TOC

Thumbnail Loget G., Roche J., Gianessi E., Bouffier L., Kuhn A.,J. Am. Chem.Soc. 2012, 134, 20033-20036. Based on the principles of bipolar electrochemistry, localized pH gradients are generated at the surface...
Thumbnail Sentic M., Loget G., Manojlovic D., Kuhn A., Sojic N.,Angew. Chem. Int. Ed. 2012, 51, 11284–11288. Swimmer in the dark: Propulsion of a conducting object is intrinsically coupled with light...
Thumbnail Fattah Z., Garrigue P., Lapeyre V., Kuhn A., Bouffier L.,J. Phys. Chem. C 2012, 116, 22021-22027. Asymmetric particles of various chemical compositions have attracted great attention because...
Thumbnail Zigah D., Rodriguez-Lopez P., Bard A. J.,Phys. Chem. Chem. Phys. 2012, 14, 12764-12772. Asymmetric particles of various chemical compositions have attracted great attention because of their...
Thumbnail Peyrard L., Dumartin M.-L., Chierici S., Pinet S., Jonusauskas G., Meyrand P., Gosse I.,J. Org. Chem. 2012, 77, 7023-7027. Cyclotriveratrylene analogues (CTVs) are supramolecular bowl-shaped...
Thumbnail Bouffier L., Gosse I., Demeunynck M., Mailley P.,Bioelectrochemistry 2012, 88, 103-109. We report here the electrochemical characterization of eight synthetic DNA intercalators based on the...
Thumbnail Loget G., Roche J., Kuhn A.,Adv. Mater. 2012, 24, 5111-5116. Cover article Janus particles have different features/chemistry on two opposite sides (see figure). So far, they have been obtained...
Thumbnail Loget G., Lee T.-C., Taylor R. W., Mahajan S., Nicoletti O., Jones S. T., Coulston R. J., Lapeyre V., Garrigue P., Midgley P. A., Scherman O. A., Baumberg J. J., Kuhn A.,Small 2012, 8,...
Thumbnail Heim M., Rousseau L., Reculusa S., Urbanova V., Mazzocco C., Joucla S., Bouffier L., Vytras K., Bartlett P., Kuhn A., Yvert B.Journal of Neurophysiology 2012, 15, 1793-1803. Microelectrode arrays...
Thumbnail Loget G., Kuhn A.,J. Mater. Chem. 2012, 22, 15457-15474. Feature article This review article highlights the most recent advances with respect to the preparation of Janus objects by bulk phase...
Thumbnail Loget G., Kuhn A.,Lab on a Chip 2012, 12, 1967-1971. Hot Paper, Cover Article We report for the first time the vertical propulsion of conducting beads in liquid filled capillaries by bipolar...
Thumbnail Destribats M., Lapeyre V., Sellier E., Leal Calderon F., Ravaine V., Schmitt V.,Langmuir 2012, 28, 3744-3755. We used soft microgels made of poly(N-isopropylacrylamide) (pNIPAM) of variable...
Thumbnail Lalo H., Bon Saint-Côme Y., Plano B., Etienne M., Walcarius E., Kuhn A.,Langmuir 2012, 28, 2323-2326. The elaboration of an original composite bimetallic macroporous electrode containing a...
Thumbnail Couedelo L., Vaysse C., Vaique E., Guy A., Gosse I., Durand T., Pinet S., Cansell M., Combe N.Journal of Nutrition 2012, 142, 70-75. Little is known about the ability of α-linolenic acid (Ln) to...
Thumbnail Heim M., Reculusa S., Ravaine S., Kuhn A.,Adv. Funct. Mater. 2012, 22, 538-545. Inside Cover Article Macroporous materials with a sophisticated architecture are obtained by electrochemical...
Thumbnail Bouffier L., Lister K. E., Higgins S. J., Nichols R. J., Doneux T.,J. Electroanal. Chem. 2012, 664, 80-87. The electrochemistry of proton coupled electron transfer phenomena is an important...
Thumbnail Heim M., Yvert B., Kuhn A.,J. Physiology - Paris 2012, 106, 137-145. Microelectrode arrays (MEAs) are widely used tools for recording and stimulating extracellular neuronal activity. Major...