Self-assembled functional organic monolayers on oxide-free copper

Mabel A. Caipa Campos, Anke K. Trilling, Menglong Yang, Marcel Giesbers, Jules Beekwilder, Jos M.J. Paulusse*, Han Zuilhof*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

Abstract

The preparation and characterization of self-assembled monolayers on copper with n-alkyl and functional thiols was investigated. Well-ordered monolayers were obtained, while the copper remained oxide-free. Direct attachment of N-succinimidyl mercaptoundecanoate (NHS-MUA) onto the copper surface allowed for the successful attachment of biomolecules, such as β-d-glucosamine, the tripeptide glutathione, and biotin. Notably, the copper surfaces remained oxide-free even after two reaction steps. All monolayers were characterized by static water contact angle measurements, X-ray photoelectron spectroscopy, and infrared reflection absorption spectroscopy. In addition, the biotinylated copper surfaces were employed in the immobilization of biomolecules such as streptavidin.

Original languageEnglish
Pages (from-to)8126-8133
Number of pages8
JournalLangmuir
Volume27
Issue number13
DOIs
Publication statusPublished - 5 Jul 2011
Externally publishedYes

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