Self-Assembled Functional Organic Monolayers on Oxide-Free Copper

M.A. Caipa Campos, A.K. Trilling, M. Yang, M. Giesbers, J. Beekwilder, J.M.J. Paulusse, H. Zuilhof

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 ß-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
JournalLangmuir
Volume27
Issue number13
DOIs
Publication statusPublished - 2011

Keywords

  • molecular-dynamics simulation
  • surface-plasmon resonance
  • alkanethiol monolayers
  • structural-characterization
  • infrared-spectroscopy
  • corrosion protection
  • wetting properties
  • oxygen-transport
  • carboxylic-acids
  • n-dodecanethiol

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