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Article Dans Une Revue Langmuir Année : 2009

Self-Assembled Monolayers of Bisphosphonates: Influence of Side Chain Steric Hindrance

Résumé

Bisphosphonates form self-assembled monolayers (SAMs) spontaneously on stainless steel, silicon, and titanium oxidized surfaces. We used contact angle measurements, atomic force microscopy, and X-ray reflectivity analysis to study the formation of SAMs on a model surface of ultraflat titanium (rms = 0.2 nm). The results were extended to standard materials (mechanically polished titanium, stainless steel, and silicon) and showed that water-soluble bisphosphonic perfluoropolyether can easily form SAMs, with 100% surface coverage and a layer thickness of less than 3 nm. Hydrophobic (water contact angle >110° on stainless steel or titanium) and lipophobic (methylene iodide contact angle >105° on titanium) properties are discussed in terms of industrial applications.
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Dates et versions

hal-02354274 , version 1 (07-11-2019)

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G. Lecollinet, N. Delorme, M. Edely, Alain Gibaud, Jean-François Bardeau, et al.. Self-Assembled Monolayers of Bisphosphonates: Influence of Side Chain Steric Hindrance. Langmuir, 2009, 25 (14), pp.7828-7835. ⟨10.1021/la8039576⟩. ⟨hal-02354274⟩
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