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Article Dans Une Revue Colloids and Surfaces A: Physicochemical and Engineering Aspects Année : 2024

Electrodeposition of antioxidant films from resveratrol

Vincent Ball

Résumé

The electrodeposition of derivatives of phenol or of other polyphenols by means of cyclic voltammetry or other electrochemical methods offers the opportunity to eliminate rather hazardous molecules from solution and to coat conductive surfaces with robust, conformal and chemically reactive films. Herein electrodeposition of resveratrol, a natural polyphenol of wines, is investigated on amorphous carbon electrodes and compared to the well known electrodeposition of resorcinol from which it derives with the aim to understand the role of basic constituents in the electrochemistry of complex polyphenols. It is shown that the presence of 4-vinylphenol group on resorcinol to yield resveratrol does not hinder the electrode passivation under cyclic voltammetry but at the contrary that the oxidation of resveratrol occurs at lower potentials than the oxidation of resorcinol. The electron transfer coefficient on amorphous carbon is also evaluated and it is shown that resveratrol based coatings, contrarily to resorcinol ones, display an interesting antioxidant activity. All the obtained films were conformal and hydrophilic.

Domaines

Biotechnologies
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Dates et versions

hal-04460934 , version 1 (15-02-2024)

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Citer

Vincent Ball. Electrodeposition of antioxidant films from resveratrol. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2024, 686, pp.133374. ⟨10.1016/j.colsurfa.2024.133374⟩. ⟨hal-04460934⟩
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