Anchoring of alkylphosphonic derivatives molecules on copper oxide surfaces

G. Fonder, I. Minet, S. Devillers, J. Delhalle, Z. Mekhalif, C. Volcke

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In this study, a new approach of copper surface modification, taking advantage of the oxide layer naturally present, is proposed using phosphonic acids derivatives. Phosphonic acids are a class of molecules particularly known for their spontaneous self-assembly on oxidized substrates. On this basis, copper substrates chemically oxidized using H O (5%) were successfully modified with n-dodecylphosphonic acid and 1-pyrrolyl-10- decanephosphonic acids. The oxidation state of copper substrate, just after chemical oxidation, was probed by XPS and PM-IRRAS. Surface characterization was completed by contact angle and AFM measurements. Molecular integrity, alkyl chain ordering and wettability were evaluated for both elaborated coatings. The panel of characterization tools used demonstrates the efficient grafting of phosphonic acid compounds on oxidized copper surfaces. The grafting mode appears similar for both investigated molecules and is evaluated as a tridentate mode.
langue originaleAnglais
Pages (de - à)6300-6307
Nombre de pages8
journalCell biology and toxicology
Numéro de publication14
Les DOIs
Etat de la publicationPublié - 1 mai 2011

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