Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

Interactions between hydrophilic and hydrophobic surfaces on microscopic scale and the influence of air bubbles as observed by scanning force microscopy in aqueous and alcoholic mediums

Title data

Papastavrou, Georg ; Akari, S. ; Möhwald, Helmuth:
Interactions between hydrophilic and hydrophobic surfaces on microscopic scale and the influence of air bubbles as observed by scanning force microscopy in aqueous and alcoholic mediums.
In: Europhysics Letters. Vol. 52 (2000) Issue 5 . - pp. 551-556.
ISSN 0295-5075
DOI: https://doi.org/10.1209/epl/i2000-00472-2

Official URL: Volltext

Abstract in another language

In the present study interactions between hydrophilic and hydrophobic surfaces were studied on a microscopic scale by using scanning force microscopy (SFM). Gold-coated surfaces were chemically modified to be hydrophobic or hydrophilic by self-assembly monolayers based on thiols with different end-groups (COOH, CH3). The adhesion forces between hydrophilic tips and hydrophilic or hydrophobic surfaces were measured in water/ethanol mixtures by recording force-distance curves. The measurements in water/ethanol mixtures short an increase of the adhesion forces due to the increase of the water content. The observed interactions are of short range within few nm. In some force-distance curves with hydrophobic tips a stepping in the retracting part was observed which could be attributed to air bubbles in the vicinity of the tip-surface junction.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry II
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors > Chair Physical Chemistry II - Univ.-Prof. Dr. Andreas Fery
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry II
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 13 Sep 2017 09:26
Last Modified: 13 Sep 2017 09:26
URI: https://eref.uni-bayreuth.de/id/eprint/39595