V. Badets, D. Duclos, D. Quinton, O. Fontaine, D. Zigah

Electrochimica Acta, 2015, doi:10.1016/j.electacta.2015.10.066

A dual gold-copper microelectrode (diameter 25 μm) was fabricated to be employed in a scanning electrochemical microscopy (SECM) configuration, and was used in feedback mode to both modify (write) and analyze (read) a substrate. This write-and-read procedure was performed on a glassy carbon electrode on which azide groups were introduced by electrochemical reduction of a diazonium salt. The copper part of the microelectrode was used to electrogenerate Cu(I) that catalyzed a “click” reaction between azide moieties on the surface and dissolved ethynylferrocene. This created a pattern of ferrocene moieties on the surface that was analyzed with the gold part of the microelectrode.

2015-16

 

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Thumbnail L. Bouffier, S. Arbault, A. Kuhn, N. Sojic Techniques de l’Ingénieur. 2018. P156 Les mesures sélectives et sensibles dans des échantillons complexes tels que l’urine ou le sang sont devenues des...
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Fibre-optic Biosensors
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Thumbnail Sojic N.,In Chemical Sensors and Biosensors, Eds. R. Lalauze and N. Jaffrezic-Renault, ISTE-Wiley, London, 2012. Book Chapter Technological needs for chemical, ionic and biological species...
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