Effect of solvents on interactions between hydrophobic self-assembled monolayers

Efrosini Kokkoli, Charles F. Zukoski

Research output: Contribution to journalArticlepeer-review

46 Scopus citations


An atomic force microscope was used to measure forces between self- assembled monolayers (SAMs) of hexadecanethiol as a function of solvent type. Solvents alter interactions between surfaces by changing the wetting properties of the surface. Adhesive forces decrease with solvent dielectric constant and vary monotonically for mixtures of water and ethanol, ethanol and methanol, and water and ethylene glycol. This study demonstrates that interactions and adhesion between hydrophobic SAMs can be manipulated through changes in the contact angle of the surface.

Original languageEnglish (US)
Pages (from-to)60-65
Number of pages6
JournalJournal of Colloid And Interface Science
Issue number1
StatePublished - Jan 1 1999


  • Adhesion
  • Atomic force microscope
  • Self-assembled monolayers
  • Solvents
  • Wetting properties

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