Electrophoretically deposited carbon nanotubes as a novel support for electrogenerated silica–dehydrogenase bioelectrodes

Abstract : The electrophoretic deposition of carbon nanotubes (CNT) on glassy carbon electrode was used here for the development of porous matrix with enhanced electroactive surface area. The prepared layer displayed a catalytic activity toward NADH oxidation and was used as a support for the d-sorbitol dehydrogenase immobilization. The electrochemically assisted deposition (EAD) method was performed to generate around carbon nanotubes sol–gel biocomposite films containing the enzyme and a cationic polyelectrolyte. The response of the immobilized enzyme strongly depended on the parameters of sol–gel deposition as well as the thickness of carbon nanotubes layer. The electrocatalytic oxidation of d-sorbitol using such modified electrode was used here as a model to discuss the interest of such silica–carbon nanotubes composite in the field of bioelectrochemistry and biosensors.
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https://hal.univ-lorraine.fr/hal-01941826
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Submitted on : Sunday, December 2, 2018 - 3:37:58 PM
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Ievgen Mazurenko, Mathieu Etienne, Oksana Tananaiko, Vladimir Zaitsev, Alain Walcarius. Electrophoretically deposited carbon nanotubes as a novel support for electrogenerated silica–dehydrogenase bioelectrodes. Electrochimica Acta, Elsevier, 2012, 83, pp.359-366. ⟨10.1016/j.electacta.2012.07.068⟩. ⟨hal-01941826⟩

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